CN211347221U - Vehicle chassis focus detects adjusting device - Google Patents

Abstract

The utility model provides a vehicle chassis focus detects adjusting device relates to vehicle chassis technical field. The vehicle underframe gravity center detection adjusting device comprises a base, a center plate seat and a telescopic mechanism; the two bases are used for being arranged at two ends of the length direction of the vehicle underframe respectively, the top of each base is provided with two telescopic mechanisms and is located two center plate seats between the telescopic mechanisms, each telescopic mechanism is suitable for supporting one side bearing of the vehicle underframe, the top of each telescopic mechanism is suitable for lifting relative to the bottom of the telescopic mechanism, and each center plate seat is used for supporting an upper center plate of the vehicle underframe.

Description

Vehicle chassis focus detects adjusting device

Technical Field

The utility model relates to a vehicle chassis technical field particularly, relates to a vehicle chassis focus detects adjusting device.

Background

The chassis of a long and large goods vehicle (such as a railway wagon) is influenced by factors such as process level, material specification, welding deformation and the like in the manufacturing process, and factors such as cargo heavy load, loading, reinforcing and welding of a vehicle body in the heavy-load transportation process, so that the coincidence of the gravity center and the geometric center of the chassis of the vehicle is difficult to ensure.

Because the body of the long and large goods vehicle is longer and the deflection is larger when the body is heavily loaded, generally be equipped with the ball center dish, when the focus of vehicle chassis and vehicle chassis geometric centre produced the deviation, the vehicle chassis will use the ball center of center dish to produce the rotation as the center, to one side slope, influence vehicle operation quality and application safety. In the prior art, the gravity center of the vehicle chassis cannot be accurately detected, and whether the gravity center of the vehicle chassis is superposed with the geometric center of the vehicle chassis is uncertain, so that the problems of influencing the running quality and the application safety of the vehicle can occur.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving to a certain extent among the prior art and to the unable comparatively accurate detection of vehicle chassis focus, whether uncertain vehicle chassis focus and vehicle chassis geometric centre coincide, cause probably to take place to influence the problem of vehicle operation quality and application safety.

In order to solve the problems, the utility model provides a vehicle chassis gravity center detection and adjustment device, which comprises a base, a center plate seat and a telescopic mechanism;

the two bases are respectively arranged at two ends of the length direction of the vehicle underframe, and the top of each base is provided with one center plate seat;

every the top of base is provided with two telescopic machanism and is located two center plate seat between the telescopic machanism, every telescopic machanism is suitable for the support a side bearing of vehicle chassis, telescopic machanism's top is suitable for relatively telescopic machanism's bottom goes up and down, center plate seat is used for supporting the last center plate of vehicle chassis.

Furthermore, the telescopic mechanism comprises a bottom plate, a screw sleeve, a screw and a supporting platform;

the bottom plate is the bottom of the telescopic mechanism;

the bottom end of the screw rod sleeve is rotatably connected with the bottom plate;

the bottom end of the lead screw is in threaded connection with the lead screw sleeve;

the supporting platform is connected to the top end of the lead screw;

the supporting platform is the top of the telescopic mechanism.

Further, the bottom of screw rod cover is formed with first boss, the diameter of first boss is greater than the external diameter of screw rod cover, it has a plurality of right angle briquetting to be the annular laminating on the first boss, and is a plurality of the right angle briquetting pass through the fastener connect in the bottom plate.

The surface of the screw rod sleeve is provided with a plurality of handles which are distributed on the surface of the screw rod sleeve at equal intervals in an annular mode.

Furthermore, the telescopic mechanism further comprises a guide assembly, the guide assembly comprises a guide sleeve and a guide pillar, the bottom end of the guide sleeve is connected with the bottom plate, the guide pillar is inserted into the guide sleeve, and the top end of the guide pillar extends out of the guide sleeve and is fixed with the supporting platform.

Furthermore, two guide assemblies are respectively arranged on each bottom plate, and the two guide assemblies are symmetrically arranged on two sides of the screw sleeve.

Further, the vehicle chassis gravity center detection and adjustment device further comprises four supporting seats, wherein each supporting seat is arranged on the base, and each supporting seat is provided with one telescopic mechanism.

Further, the supporting seat includes upper cover plate, lower apron and web, the upper cover plate is fixed the top of web, the lower apron is fixed the bottom of web, upper cover plate department is provided with four slotted holes, four the slotted hole is the distribution of rectangle array upper cover plate department, the length direction of slotted hole with the width direction of upper cover plate is unanimous, the edge of bottom plate is connected through the fastener slotted hole department to make the bottom plate follow the length direction of slotted hole removes.

Further, the mandrel holder comprises a liner and a lower mandrel, the liner being made of a polymer material, the liner being in contact with the upper mandrel.

Further, the lower core plate is fixed at the top center of the base, the top of the gasket is concave downwards, and the upper core plate is contacted with the top of the gasket; the gasket is in a disc shape, a protruding part protrudes downwards from the center of the bottom of the gasket, and the protruding part is suitable for being inserted into a central circular hole of the lower core plate.

Compared with the prior art, the utility model provides a pair of vehicle chassis focus detects adjusting device has but not be limited to following technological effect:

through the two bases which are arranged, the two bases respectively support the left side and the right side of the vehicle underframe, the two telescopic mechanisms on each base support two side bearings which are positioned on the same left side/right side of the vehicle underframe, and one upper center plate at each side of the left and right sides of the chassis of the vehicle is supported by one center plate seat on each base, because of the height adjustability of the telescopic mechanism, when the top of the chassis is contacted with the side bearing, the center plate seat can be contacted with the upper center plate at the same time, the vehicle chassis is flatly placed on the vehicle chassis gravity center detection and adjustment device, then the height of the telescopic mechanism is reduced, so that the side bearing is not contacted with the telescopic mechanism any more, if the gravity center of the vehicle underframe is not coincident with the geometric center of the vehicle underframe, the vehicle underframe can rotate around the spherical center of the upper center plate and incline to one side, and the conclusion that whether the gravity center of the vehicle underframe is coincident with the geometric center of the vehicle underframe is obtained; the problem of among the prior art to the unable comparatively accurate detection of vehicle chassis focus, uncertain whether the focus of vehicle chassis and the geometric center of vehicle chassis coincide, cause probably to take place to influence vehicle operation quality and application safety is solved.

Drawings

Fig. 1 is a schematic side view of a vehicle underframe gravity center detection and adjustment device according to an embodiment of the invention;

fig. 2 is a schematic front view of a vehicle underframe gravity center detection and adjustment device according to an embodiment of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is a schematic front view structural diagram of a telescoping mechanism of an embodiment of the present invention;

FIG. 5 is a schematic side view structural diagram of a telescoping mechanism according to an embodiment of the present invention;

FIG. 6 is a schematic top view of a telescoping mechanism with a support platform removed according to an embodiment of the present invention;

fig. 7 is a schematic side view of a base of an embodiment of the present invention;

FIG. 8 is a schematic top view of an upper cross plate of an embodiment of the present invention;

FIG. 9 is a schematic side view of a support base according to an embodiment of the present invention;

FIG. 10 is a schematic front view of a support base according to an embodiment of the present invention;

fig. 11 is a schematic top view of an upper cover plate of an embodiment of the present invention;

FIG. 12 is a schematic block diagram of a hub base according to an embodiment of the present invention;

fig. 13 is a schematic configuration diagram of a vehicle underframe according to an embodiment of the present invention when it is inclined.

The main explanation element symbols are as follows:

1-base, 11-support legs, 12-cross beam, 121-upper transverse plate, 1211-round hole group, 122-lower transverse plate and 123-middle longitudinal plate;

2-a support seat, 21-an upper cover plate, 211-a long circular hole, 22-a lower cover plate and 23-a web plate;

3-telescoping mechanism, 31-bottom plate, 32-screw sleeve, 321-first boss, 322-right-angle pressing block, 323-handle, 33-screw, 331-transverse conical hole, 34-supporting platform, 341-side hole, 342-center hole, 343-variable cross-section hole, 344-tip cone, 35-guide component, 351-guide sleeve, 3511-second boss and 352-guide column;

4-center seat, 41-lower center, 411-center round hole, 42-pad, 421-convex part;

5-vehicle underframe, 51-side bearing, 52-upper center plate;

6-fastening piece.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

Also, in the drawings, the Z-axis represents a vertical, i.e., up-down position, and a positive direction of the Z-axis (i.e., an arrow direction of the Z-axis) represents up, and a negative direction of the Z-axis (i.e., a direction opposite to the positive direction of the Z-axis) represents down;

in the drawings, the X-axis represents the longitudinal direction of the horizontal plane, perpendicular to the Z-axis, and the positive direction of the X-axis (i.e., the arrow direction of the X-axis) represents the front side, and the negative direction of the X-axis (i.e., the direction opposite to the positive direction of the X-axis) represents the rear side;

in the drawings, Y represents a horizontal direction, while being perpendicular to the Z-axis and the X-axis, and a positive direction of the Y-axis (i.e., an arrow direction of the Y-axis) represents a left side, and a negative direction of the Y-axis (i.e., a direction opposite to the positive direction of the Y-axis) represents a right side;

the plane formed by the X axis and the Z axis is a vertical plane.

It should also be noted that the foregoing Z-axis, Y-axis, and X-axis representations are merely intended to facilitate the description of the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

The terms "first", "second", etc. are presented for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

Referring to fig. 1 to 3, the present embodiment provides a vehicle underframe gravity center detection and adjustment device, which includes a base 1, a center plate seat 4 and a telescopic mechanism 3;

the two bases 1 are respectively arranged at two ends of the length direction of the vehicle underframe 5;

the top of each base 1 is provided with two telescoping mechanisms 3 and a mandrel base 4 located between the two telescoping mechanisms 3, each telescoping mechanism 3 is adapted to support one side bearing 51 of the vehicle underframe 5, the top of the telescoping mechanism 3 is adapted to be raised and lowered relative to the bottom of the telescoping mechanism 3 and held at any given height, and the mandrel base 4 is used to support the upper mandrel 52 of the vehicle underframe 5.

Referring to fig. 2, the "longitudinal direction of the vehicle undercarriage 5" described above and appearing hereinafter refers to the Y-axis direction in the drawing, i.e., the left-right direction of the vehicle undercarriage 5.

Here, two bases 1 are provided, the two bases 1 respectively support the left and right sides of a vehicle underframe 5, two telescoping mechanisms 3 on each base 1 support two side bearings 51 positioned on the same left/right sides of the vehicle underframe 5, and one center plate 52 on each left and right sides of the vehicle underframe 5 is supported by one center plate seat 4 on each base 1, because of the height adjustability of the telescoping mechanisms 3, when the top of the telescoping mechanisms 3 is contacted with the side bearings 51, the center plate seats 52 can also be contacted with the center plate 52 at the same time, the vehicle underframe 5 is horizontally placed on the vehicle underframe gravity center detection adjusting device, then the height of the telescoping mechanisms 3 is reduced, the side bearings 51 are not contacted with the telescoping mechanisms 3, if the gravity center of the vehicle underframe 5 is not coincident with the geometric center of the vehicle underframe 5, the vehicle underframe 5 rotates around the spherical center of the center plate 52 and inclines to one side, obtaining a conclusion whether the gravity center of the vehicle underframe 5 is consistent with the geometric center of the vehicle underframe 5; the problem of among the prior art to the unable comparatively accurate detection of vehicle chassis 5 focus, uncertain whether the focus of vehicle chassis 5 and the geometric centre of vehicle chassis 5 coincide, cause probably to take place to influence vehicle operation quality and application safety is solved.

It should be noted that the above-mentioned "disposed" includes various connection manners such as fixed connection, detachable connection, and the like, and the same also applies to the "disposed" and the "disposed" mentioned later in this embodiment.

Referring to fig. 4 to 6, a specific structure of the telescoping mechanism 3 is described, and preferably, the telescoping mechanism 3 includes a bottom plate 31, a lead screw sleeve 32, a lead screw 33 and a supporting platform 34;

the bottom plate 31 is the bottom of the telescopic mechanism 3; the bottom end of the screw sleeve 32 is rotatably connected with the bottom plate 31;

the bottom end of the screw rod 33 is connected in the screw rod sleeve 32 in a threaded manner;

the supporting platform 34 is connected to the top end of the screw 33;

the support platform 34 is the top of the telescopic mechanism 3.

Here, the pressure of the vehicle underframe 5 on the support platform 34 ensures that the support platform 34 does not rotate, so that the support platform 34 moves up and down along with the lead screw 33 when the lead screw sleeve 32 is rotated.

It should be noted that the above-mentioned "rotational connection" means that the screw housing 32 rotates relative to the bottom plate 31, and the screw housing 32 only rotates along its central axis. Hereinafter, the "rotational connection" in this embodiment is referred to in the same manner, and therefore, the "rotational connection" will not be explained in the following.

Referring to fig. 4 to 6, describing how the screw housing 32 is rotatably connected specifically, preferably, a first boss 321 is formed at the bottom end of the screw housing 32, a diameter of the first boss 321 is larger than an outer diameter of the screw housing 32, a plurality of right-angle pressing blocks 322 are annularly attached to the first boss 321, and the plurality of right-angle pressing blocks 322 are connected to the bottom plate 31 through fasteners 6, that is, the plurality of right-angle pressing blocks 322 are connected to the top of the bottom plate 31 through fasteners 6.

Here, the first boss 321 is limited by the plurality of right-angle pressing blocks 322, so as to ensure that the screw sleeve 32 can only rotate.

It should be noted that the fastening member 6 is a bolt in the present embodiment, and the same applies to the fastening member 6 described below.

Referring to fig. 4 to 6, preferably, the telescoping mechanism 3 further includes a guide assembly 35, the guide assembly 35 is respectively connected to the bottom plate 31 and the supporting platform 34, the length of the guide assembly 35 is adjustable, and the guide assembly 35 is used for limiting the rotation of the supporting platform 34. Preferably, two guide assemblies 35 are respectively disposed on each bottom plate 31, and the two guide assemblies 35 are symmetrically disposed on two sides of the screw housing 32.

Here, the guide assembly 35 is respectively connected with the bottom plate 31 and the support platform 34, the support platform 34 cannot rotate under the limitation of the guide assembly 35, the support platform 34 is detachably connected with the top end of the lead screw 33, the rotation of the lead screw 33 is further limited, and when the lead screw sleeve 32 is rotated, the lead screw 33 can only drive the support platform 34 to ascend or descend even if the pressure of the vehicle underframe 5 on the support platform 34 is not provided.

Referring to fig. 4, describing the specific structure of the guide assembly 35, preferably, the guide assembly 35 includes a guide sleeve 351 and a guide post 352, the guide sleeve 351 is hollow, the bottom end of the guide sleeve 351 is connected to the bottom plate 31, the guide post 352 is slidably connected in the guide sleeve 351, the top end of the guide post 352 extends out of the guide sleeve 351 and is inserted into the side hole 341 of the supporting platform 34, i.e. is detachably connected to the supporting platform 34, and in addition, the top end of the guide post 352 extending out of the guide sleeve 351 can also be directly fixed to the supporting platform 34, i.e. is fixedly connected to the supporting platform 34.

Here, the aforementioned function of adjusting the length of the guide assembly 35 is achieved by slidably disposing the guide post 352 in the guide sleeve 351.

Here, the top end of the guide post 352 is inserted into the side hole 341 of the supporting platform 34 or directly fixed to the supporting platform 34, and the supporting platform 34 can be prevented from rotating by any connection method.

Referring to fig. 3 and 5, preferably, two guide assemblies 35 are disposed on the bottom plate 31, and the two guide assemblies 35 are symmetrically disposed on two sides of the screw housing 32.

Here, two guide assemblies 35 are symmetrically arranged on two sides of the screw sleeve 32, so that the supporting platform 34 is uniformly stressed and prevented from being damaged.

Referring to fig. 4, describing a specific connection manner of the guide sleeve 352 and the base plate 31, it is preferable that a second boss 3511 is formed at a bottom end of the guide sleeve 351, and the second boss 3511 is connected to the base plate 31 by a fastening member 6.

Here, the bottom end of the guide sleeve 351 is formed with a second boss 3511, and the second boss 3511 is connected with the bottom plate 31 through the fastener 6, so that the guide assembly 35 and the support platform 34 can be detached, and the guide assembly can be detached from the bottom plate 31, and the assembly is convenient.

Referring to fig. 4 to 6, preferably, the surface of the screw housing 32 is provided with a plurality of handles 323, and the plurality of handles 323 are annularly and equally spaced on the surface of the screw housing 32.

Here, by providing a plurality of handles 323 on the surface of the screw housing 32, when the screw housing 32 needs to be rotated, it is only necessary to grasp the handles 323 and rotate them, which is more labor-saving and convenient.

Referring to fig. 4-6, the handle 323 is preferably removably attached to the screw housing 32 by threading the handle 323 near the thin end of the screw housing 32 into a pre-threaded hole in the surface of the screw housing 32.

Referring to fig. 3 and 4, describing in detail how the top end of the lead screw 33 is detachably connected to the support platform 34, preferably, the top end of the lead screw 33 is inserted into a central hole 342 in the center of the support platform 34, the top end of the lead screw 33 is provided with a transverse tapered hole 331, the axis of the transverse tapered hole 331 is perpendicular to the axis of the lead screw 33, a variable-section hole 343 is transversely arranged in the support platform 34, a top cone 345 is arranged in the variable-section hole 343, and the transverse tapered hole 331 is connected through the top cone 345.

Referring to fig. 1 to 3, preferably, the vehicle underframe gravity center detecting and adjusting device further comprises supporting seats 2, the supporting seats 2 are arranged on the base 1, and each supporting seat 2 is provided with a telescopic mechanism 3.

Referring to fig. 9 to 11, describing a specific structure of the support seat 2, preferably, the support seat 2 includes an upper cover plate 21, a lower cover plate 22 and a web 23, the upper cover plate 21 is fixed on the top of the web 23, the lower cover plate 22 is fixed on the bottom of the web 23, four oblong holes 211 are provided at the upper cover plate 21, the four oblong holes 211 are distributed at the upper cover plate 21 in a rectangular array, the length direction of the oblong holes 211 is identical to the width direction of the upper cover plate 21, and the corners of the bottom plate 31 are connected to the oblong holes 211 through fasteners 6, so that the bottom plate 31 moves along the length direction of the oblong holes 211.

Here, the bottom plate 31 of the telescopic mechanism 3 is connected to the oblong hole 211 by a fastening member 6, and the fastening member 6 can move along the longitudinal direction of the oblong hole 211, thereby adjusting the position of the telescopic mechanism 3 on the support base 2.

Referring to fig. 7 and 8, describing the structure of the base 1 in detail, preferably, the base 1 includes legs 11 and a cross member 12, the cross member 12 is fixed on the tops of the legs 11, the cross member 12 includes an upper cross member 121, a lower cross member 122 and a plurality of middle longitudinal members 123, the upper cross member 121 is fixed above the lower cross member 122 through the plurality of middle longitudinal members 123, the lower cross member 122 is connected to the legs 11, a plurality of rows of circular hole groups 1211 are formed on the upper cross member 121, the length direction of the circular hole groups 1211 corresponds to the width direction of the upper cross member 121, and the lower cover member 122 is connected to the corresponding circular hole groups 1211 through fasteners 6.

Here, the lower cover plate 21 of the supporting seat 2 is connected to the corresponding circular hole set 1211 through the fastening member 6, and the plurality of circular hole sets 1211 are arranged to facilitate adjustment of the position of the supporting seat 2 connected to the base 1, so that the centers of the two telescopic mechanisms 3 on one base 1 are aligned with the centers of the two side bearings 51 on the same side in cooperation with the adjustability of the positions of the telescopic mechanisms 3 on the supporting seat 2.

Referring to fig. 12, which describes the specific structure of the seat 4, the seat 4 preferably includes a liner 42 and a lower core 41, the liner 42 being made of a polymer material, the liner 42 being in contact with an upper core 52.

Preferably, the lower core 41 is fixed in the center of the top of the base 1, the top of the gasket 42 is recessed downwards, and the upper core 52 is in contact with the top of the gasket 42; the packing 42 is in a shape of a circular disk, and a boss 421 protrudes downward from the center of the bottom of the packing 42, and the boss 421 is adapted to be inserted into the central circular hole 411 of the lower core plate 41.

Here, the protruding portion 421 is inserted into the central circular hole 411 of the lower core plate 41 by protruding the protruding portion 421 at the bottom center of the gasket 42, so as to ensure that the gasket 42 does not move, and preferably, the gasket 42 is made of a polymer material, such as rubber, plastic, etc., so that the protection effect is better.

The gravity center detection principle of the vehicle underframe 5 based on the vehicle underframe gravity center detection and adjustment device is as follows:

an upper core 52 for supporting the chassis 5 of the vehicle by the core holder 4;

two side bearings 51 at one end of the vehicle underframe 5 in the length direction are arranged with a gap between the two corresponding telescopic mechanisms 3, and the tops of the two corresponding telescopic mechanisms 3 are positioned on the same horizontal plane;

detecting gaps h1, h2 between two side bearings 51 at one end of the vehicle underframe 5 in the longitudinal direction and the tops of the two corresponding telescoping mechanisms 3;

the vertical distance H between the gravity center of the vehicle underframe 5 and the sphere center of the upper center plate 52 is obtained;

obtaining the center distance L of the two side bearings 51 at one end of the vehicle underframe 5 in the length direction;

by the formula: the center of gravity lateral shift amount a at the two side bearings 51 at one end in the longitudinal direction of the vehicle underframe 5 is known as (H2-H1) × H/L.

Preferably, after the lateral offset a of the center of gravity is known, the top height of the telescopic mechanism is adjusted, so that the gaps h1, h2 between the two side bearings 51 at one end of the vehicle underframe 5 in the length direction and the tops of the two telescopic mechanisms 3 are changed, and the center of gravity of the vehicle underframe 5 and the center of the upper center plate 52 are coincident in the same vertical plane.

The specific operation in the gravity center detection process of the vehicle underframe 5 is realized by the following steps:

placing two vehicle underframe gravity center detection and adjustment devices and leveling the top surface of the base 1;

adjusting the distance between the two bases 1 according to the center distance between the two upper center plates 52 of the vehicle underframe 5, so that the distance between the two center plate seats 4 is equal to the center distance between the two upper center plates 52;

the center distance of two side bearings 51 positioned on the same side of the vehicle underframe 5 is marked as L, the position of the supporting seat 2 at the base 1 is adjusted, the position of the telescopic mechanism 3 at the supporting seat 2 is adjusted, and the centers of the two telescopic mechanisms 3 on one base 1 are aligned with the centers of the two side bearings 51 on the same side;

rotating the screw sleeve 32 of the telescopic mechanism 3 to make the telescopic mechanism 3 meet the requirement of the height difference between the upper center plate 52 and the side bearing 51;

placing the vehicle underframe 5 on a vehicle underframe gravity center detection and adjustment device, enabling the upper center plate 52 to be in contact with the center plate seat 4, and enabling the side bearing 51 to be in contact with the top of the telescopic mechanism 3;

and (3) detecting data: rotating the screw sleeve 32 of the telescoping mechanism 3 to prevent the side bearing 51 from contacting the telescoping mechanism 3 and to form a certain gap, and if the gravity center of the vehicle underframe 5 does not coincide with the geometric gravity center of the vehicle underframe 5, rotating the vehicle underframe 5 around the spherical center of the upper center plate 52 and inclining to one side, and respectively measuring the height differences h1 and h2 between the centers of the side bearings 51 at two sides and the supporting platform 34;

calculating the lateral offset of the center of gravity: the gravity center lateral offset is recorded as a, the vertical distance H between the gravity center of the vehicle underframe 5 and the sphere center of the upper center plate 52 is obtained according to three-dimensional modeling, the inclination angle of the vehicle underframe 5 is constant, the ratio of the height difference of the side bearings 51 at two sides to the center distance of the side bearing 51 at the same side is the ratio of the gravity center lateral offset to H, namely, (H2-H1)/L is a/H, and a is (H2-H1) multiplied by H/L.

Finally, the position of the upper center plate 52 of the vehicle underframe 5 is adjusted according to the lateral offset of the gravity center, so that the gravity center of the vehicle underframe 5 is coincided with the center of the upper center plate 52.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Without departing from the spirit and scope of the present disclosure, those skilled in the art can make various changes and modifications, which will fall into the scope of the present disclosure.

Claims (10)

1. A vehicle underframe gravity center detection and adjustment device is characterized by comprising a base (1), a center plate seat (4) and a telescopic mechanism (3);

the two bases (1) are respectively arranged at two ends of the length direction of the vehicle underframe (5);

every the top of base (1) is provided with two telescopic machanism (3) and be located two between telescopic machanism (3) heart dish seat (4), every telescopic machanism (3) are suitable for the support a side bearing (51) of vehicle chassis (5), the top of telescopic machanism (3) is suitable for relatively the bottom of telescopic machanism (3) goes up and down, heart dish seat (4) are used for supporting last heart dish (52) of vehicle chassis (5).

2. The vehicle underframe gravity center detecting and adjusting device according to claim 1, wherein the telescoping mechanism (3) comprises a bottom plate (31), a lead screw sleeve (32), a lead screw (33) and a support platform (34);

the bottom plate (31) is the bottom of the telescopic mechanism (3); the bottom end of the screw rod sleeve (32) is rotatably connected with the bottom plate (31);

the bottom end of the lead screw (33) is in threaded connection with the lead screw sleeve (32);

the supporting platform (34) is connected to the top end of the lead screw (33);

the supporting platform (34) is the top of the telescopic mechanism (3).

3. The vehicle underframe gravity center detecting and adjusting device according to claim 2, wherein a first boss (321) is formed at the bottom end of the screw sleeve (32), the diameter of the first boss (321) is larger than the outer diameter of the screw sleeve (32), a plurality of right-angle pressing blocks (322) are annularly attached to the first boss (321), and the right-angle pressing blocks (322) are connected to the bottom plate (31) through fasteners (6).

4. The vehicle underframe gravity center detecting and adjusting device according to claim 2, characterized in that a plurality of handles (323) are arranged on the surface of the screw sleeve (32), and the plurality of handles (323) are annularly and equally spaced on the surface of the screw sleeve (32).

5. The vehicle underframe gravity center detection and adjustment device according to claim 2, wherein said telescoping mechanism (3) further comprises a guide assembly (35), said guide assembly (35) comprises a guide sleeve (351) and a guide post (352), the bottom end of said guide sleeve (351) is connected with said bottom plate (31), said guide post (352) is inserted into said guide sleeve (351), and the top end of said guide post (352) extends out of said guide sleeve (351) and is fixed with said support platform (34).

6. The vehicle underframe gravity center detecting and adjusting device according to claim 5, wherein two guide assemblies (35) are respectively arranged on each bottom plate (31), and the two guide assemblies (35) are symmetrically arranged on two sides of the screw sleeve (32).

7. The vehicle underframe gravity center detecting and adjusting device according to claim 3, further comprising four supporting seats (2), wherein said supporting seats (2) are arranged on said base (1), and each supporting seat (2) is provided with one telescopic mechanism (3).

8. The vehicle underframe gravity center detecting and adjusting device is characterized in that the supporting seat (2) comprises an upper cover plate (21), a lower cover plate (22) and a web plate (23), the upper cover plate (21) is fixed at the top of the web plate (23), the lower cover plate (22) is fixed at the bottom of the web plate (23), four oblong holes (211) are formed in the upper cover plate (21), the four oblong holes (211) are distributed in a rectangular array at the upper cover plate (21), the length direction of the oblong holes (211) is consistent with the width direction of the upper cover plate (21), and corners of the bottom plate (31) are connected to the oblong holes (211) through fasteners (6) so that the bottom plate (31) can move along the length direction of the oblong holes (211).

9. The vehicle underframe gravity center detecting and adjusting device according to any one of claims 1-8, wherein the center plate seat (4) comprises a pad (42) and a lower center plate (41), the pad (42) is made of polymer material, and the pad (42) is in contact with the upper center plate (52).

10. The vehicle underframe gravity center detecting and adjusting device according to claim 9, wherein the lower center plate (41) is fixed at the top center of the base (1), the top of the pad (42) is concave downward, and the upper center plate (52) is in contact with the top of the pad (42); the gasket (42) is in a disc shape, a convex part (421) protrudes downwards from the center of the bottom of the gasket (42), and the convex part (421) is suitable for being inserted into a central round hole (411) of the lower center plate (41).

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