CN215553628U

CN215553628U - Low center of gravity semitrailer

Info

Publication number: CN215553628U
Application number: CN202122187040.XU
Authority: CN
Inventors: 袁宝健; 张本国
Original assignee: Shandong Luxing Aerospace Special Vehicle Co ltd
Current assignee: Shandong Luxing Aerospace Special Vehicle Co ltd
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-01-18
Anticipated expiration: 2031-09-10

Abstract

The utility model discloses a low-gravity center semitrailer, which comprises a semitrailer body, wherein a vertical frame is welded on the outer side of the semitrailer body, a support frame is in threaded connection with the vertical frame, a cross rod is welded in the semitrailer body, an oblique rod is welded on the cross rod, a weight adjusting box is welded at the bottom end of the cross rod, a sliding box is connected in the weight adjusting box in a sliding mode, an infrared distance measuring sensor is installed on the right side of the sliding box, a balancing weight is installed in the sliding box, screw rods are in threaded connection with the two sides of the sliding box, a motor is rotatably connected to the left side of each screw rod, balance weight bars are installed on the two sides in the semitrailer body, a vertical rod is welded in the middle of the cross rod, reinforcing plates are fixedly connected in the cross rod and the vertical rod, and supports are welded on the two sides in the semitrailer body. The counterweight strip is matched with the position-adjustable counterweight block to stabilize the gravity center of the semitrailer and prevent the semitrailer from overturning; the cross rod, the inclined rod, the reinforcing plate and the like are matched to improve the overall strength of the vehicle body, so that the vehicle body is prevented from being broken.

Description

Low center of gravity semitrailer

Technical Field

The utility model relates to a low-gravity center semitrailer, in particular to a low-gravity center semitrailer, and belongs to the technical field of semitrailers.

Background

A semitrailer is a trailer whose axle is positioned behind the center of gravity of the vehicle (when the vehicle is evenly loaded) and which is equipped with a coupling device that transmits horizontal and vertical forces to the tractor. Semitrailers are generally three-axle semitrailers, and the types of semitrailers are divided into eleven-meter-bin-column semitrailers, thirteen-meter-bin semitrailers, low-bed semitrailers and the like. Is a heavy transport vehicle connected with a semitrailer head through a towing pin.

Patent number CN 211710959U's publication a trailer with prevent structure of turning over backward, be connected six welded plates and the first frid of two first counterweight plates respectively through first axostylus axostyle, can increase the weight of semitrailer body frame, be connected the backup pad of two first counterweight plates and the second frid of two second counterweight plates through the second axostylus axostyle, can continue to increase the weight of semitrailer body frame, the semitrailer body is turning and the in-process of turning over the self-discharging backward, the focus of semitrailer body can be reduced to first counterweight plate and second counterweight plate, it leads to the turnover accident to avoid semitrailer body slope, the security performance is improved, through loosening second nut and first nut, be convenient for take second axostylus axostyle and first axostylus axostyle out, dismantle second counterweight plate and first counterweight plate.

The semitrailer of the prior art has the following disadvantages: 1. the semitrailer is easy to have unstable gravity center in the process of loading and unloading goods, and the whole body of the semitrailer is easy to overturn; 2. the semitrailer body is slightly low in strength, and the body is easy to break in the process of long-time loading and transporting of heavy goods, so that the semitrailer body is improved aiming at the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provide the semi-trailer with the low center of gravity, the center of gravity of the semi-trailer is stabilized by matching the counterweight strip and the counterweight block with adjustable positions, and the semi-trailer is prevented from overturning; the cross rod, the inclined rod, the reinforcing plate and the like are matched to improve the overall strength of the vehicle body, so that the vehicle body is prevented from being broken.

The utility model realizes the purpose through the following technical scheme, and the semi-trailer with the low center of gravity comprises a trailer body, wherein a vertical frame is welded on the outer side of the trailer body, the vertical frame is in threaded connection with a support frame, a cross rod is welded in the trailer body, an inclined rod is welded on the cross rod, a weight adjusting box is welded at the bottom end of the cross rod, a sliding box is connected in the weight adjusting box in a sliding manner, an infrared distance measuring sensor is installed on the right side of the sliding box, a balancing weight is installed in the sliding box, screw rods are in threaded connection with two sides of the sliding box, a motor is rotatably connected on the left side of each screw rod, balance weight bars are installed on two sides in the trailer body, a vertical rod is welded in the middle of the cross rod, reinforcing plates are fixedly connected in the cross rod and the vertical rod, and supports are welded on two sides in the trailer body.

Preferably, the bottom end of the support frame is fixedly connected with a bottom foot, and the motor is installed on the left side of the weight adjusting box.

Preferably, the left end of the screw rod penetrates through the weight adjusting box, the inclined rods are welded on two sides of the vertical rod, and a rubber pad is bonded on the surface of the vehicle body.

Preferably, the two ends of the vertical rod are welded with cross rods, and the top end of the support is welded on the two sides of the bottom end of each cross rod.

Preferably, the weight bar is located inside a connecting member bolted on both sides in the vehicle body.

Preferably, the weight bar is positioned at the outer side of the bracket, and the weight adjusting box is positioned at the inner side of the bracket.

Preferably, the infrared distance measuring sensor and the current input end of the motor are electrically connected with an external power supply through leads.

The utility model has the beneficial effects that:

1. the counterweight strip is matched with the position-adjustable counterweight block to stabilize the gravity center of the semitrailer and prevent the semitrailer from overturning; the weight bar is clamped into the connecting piece, the bolt on the connecting piece is screwed after the position of the connecting piece is adjusted, the connecting piece and the weight bar of the buckle in the connecting piece can be fixed on two sides in the vehicle body, the weight bar can increase the weight of the vehicle body and avoid the vehicle body from falling, meanwhile, the weight block is arranged in the weight adjusting box sliding box welded at the bottom end in the vehicle body, the weight block can also increase the weight of the vehicle body, the infrared distance measuring sensor is arranged at the right side of the sliding box, the infrared distance measuring sensor continuously emits infrared rays to the right, the emitted infrared rays are directly irradiated to the surface at the right side in the weight adjusting box, the distance from the right side of the sliding box to the right side of the weight adjusting box can be continuously measured after the infrared rays are reflected and absorbed by the infrared distance measuring sensor, when the semitrailer loads or unloads goods, the motor arranged at the left side of the weight adjusting box is started, the motor rotates to drive the connected screw rod to rotate to drive the connected sliding box to move leftwards or rightwards along the screw rod, can adjust the balancing weight position in the smooth incasement according to the goods loading condition to make the balancing weight remove suitable position and stabilize the automobile body focus, avoid the automobile body to overturn.

2. The cross rod, the inclined rod, the reinforcing plate and the like are matched to improve the integral strength of the vehicle body and avoid the vehicle body from being broken; the two ends of the cross rod are welded on the two sides in the car body, the two ends of the vertical rod are welded at the middle part of the cross rod, the inclined rod is inclined, one end of the inclined rod is welded on the surface of the cross rod, the other end of the inclined rod is welded on the surface of the vertical rod, a triangle is formed between the inclined rod and the vertical rod, the triangle has strong stability, namely the cross rod, the connection between the vertical rod and the inclined rod is stable, the strength is high, meanwhile, a rubber pad is installed in the triangle formed by the inclined rod and is pasted on the surface of the car body, the shape of the rubber pad is consistent with that of the triangle, the rubber pad has good vibration reduction and buffering capacity, vibration generated in the process of loading, transporting and unloading goods can be absorbed, and therefore the whole vibration of the car body is reduced The reinforcing plates made of hard alloy are arranged in the transverse rods and the vertical rods, the hard alloy has the characteristics of high hardness, wear resistance, and better strength and toughness, and can improve the strength of the transverse rods and the vertical rods, so that the integral strength of the vehicle body is improved, and the vehicle body is prevented from being broken.

Drawings

FIG. 1 is a schematic structural view of the present invention as a whole;

FIG. 2 is a schematic view of a partial cross-sectional view of the vehicle body of the present invention;

FIG. 3 is a partial schematic top view of the present invention;

fig. 4 is a partial schematic structural view of a side view of the present invention.

In the figure: 1. a vehicle body; 2. a weight adjusting box; 3. erecting; 4. a support frame; 5. footing; 6. a diagonal bar; 7. a screw; 8. a cross bar; 9. an infrared ranging sensor; 10. a balancing weight; 11. a slide box; 12. a motor; 13. a weight strip; 14. a reinforcing plate; 15. a rubber pad; 16. a vertical rod; 17. a support; 18. a connecting member; 19. and (4) bolts.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Embodiment 1, please refer to fig. 1-4, a semi-trailer with low center of gravity comprises a trailer body 1, wherein a vertical frame 3 is welded on the outer side of the trailer body 1, the vertical frame 3 is in threaded connection with a support frame 4, an external thread is arranged on the bottom surface of the vertical frame 3, an internal thread is arranged in the support frame 4, the external thread is matched with the internal thread, the support frame 4 can be rotated to move up or down along the vertical frame 3, a cross rod 8 is welded in the trailer body 1, two ends of the cross rod 8 are welded on the inner surface of the trailer body 1 to fix the position of the cross rod 8, an oblique rod 6 is welded on the cross rod 8, one end of the oblique rod 6 is welded on two sides of the cross rod 8, one end of the oblique rod is welded on the surface of a vertical rod 16, a weight adjusting box 2 is welded at the bottom end of the cross rod 8, a slide box 11 is slidably connected in the weight adjusting box 2, and the slide box 11 can slide left and right along the weight adjusting box 2, infrared distance measuring sensor 9 is installed on smooth case 11 right side, and infrared distance measuring sensor 9 is sustainable to smooth case 11 and measures apart from the distance on 2 right sides of accent heavy case, install balancing weight 10 in the smooth case 11, smooth case 11 can make things convenient for balancing weight 10 to install, smooth case 11 both sides threaded connection has screw rod 7, and screw rod 7 rotates and drives smooth case 11 along screw rod 7 horizontal slip, screw rod 7 left side is rotated and is connected with motor 12, and motor 12 rotates and drives the screw rod 7 rotation of connecting, counter weight strip 13 is installed to both sides in the automobile body 1, thereby counter weight strip 13 can strengthen automobile body 1 weight and reduce its focus, the welding of 8 mid-portions of horizontal pole has montant 16, equal fixedly connected with reinforcing plate 14 in horizontal pole 8 and montant 16, reinforcing plate 14 can improve the intensity of horizontal pole 8 and montant 16, the welding of both sides has support 17 in the automobile body 1.

Particularly, 4 bottom fixedly connected with footing 5 of support frame, support frame 4 move down and drive footing 5 and the ground contact of bottom, motor 12 installs in the left side of accent heavy case 2, and accent heavy case 2 provides mounting platform for motor 12.

Particularly, the left end of screw rod 7 runs through transfer case 2, and screw rod 7 runs through transfer case 2 and is connected with motor 12, down tube 6 welds in the both sides of montant 16, and down tube 6 is the slope form and welds in the both sides of montant 16, can fix the position of

down tube

6, 1 surface bonding of automobile body has rubber pad 15, and rubber pad 15 is fixed in horizontal pole 8, down tube 6 and montant 16's clearance.

Particularly, 16 both ends of montant all weld there is

horizontal pole

8, and 16 both ends of montant are connected with the horizontal pole 8 of both sides respectively, can improve bulk strength, the welding of support 17 top is in the bottom both sides of horizontal pole 8, and support 17 one end is connected with automobile body 1, and one end is connected with horizontal pole 8, can constitute triangle-shaped improvement overall stability.

Specifically, the counter weight strip 13 is located the outside of support 17, has certain distance and is located the top of support 17 bottom between counter weight strip 13 and the support 17, accent heavy case 2 is located the inboard of support 17, and accent heavy case 2 is inboard at support 17 and has certain distance apart from support 17 top.

Specifically, the current input ends of the infrared distance measuring sensor 9 and the motor 12 are electrically connected with an external power supply through a lead, and the external power supply respectively provides power for the infrared distance measuring sensor 9 and the motor 12.

Example 2: referring to fig. 3-4, the difference between the present embodiment and embodiment 1 is: the weight bar 13 is positioned on the inner side of the connecting piece 18, the connecting piece 18 is clamped on the outer side of the weight bar 13 at a position capable of fixing the weight bar 13, the connecting piece 18 is bolted on two sides in the vehicle body 1 through bolts 19, and the weight bar 13 arranged in the connecting piece 18 can be fixed on the inner side of the vehicle body 1 by tightening the bolts 19.

When the semi-trailer is used, the counter weight strip 13 is clamped into the connecting piece 18, the bolt 19 on the connecting piece 18 is screwed after the position of the connecting piece 18 is adjusted, the connecting piece 18 and the counter weight strip 13 clamped in the connecting piece 18 can be fixed on two sides in the semi-trailer body 1, the counter weight strip 13 can increase the weight of the semi-trailer body 1 to avoid the semi-trailer body from toppling, meanwhile, the counter weight 10 is arranged in the slide box 11 of the weight adjusting box 2 welded at the inner bottom end of the semi-trailer body 1, the weight of the semi-trailer body 1 can also be increased by the counter weight 10, the infrared distance measuring sensor 9 is arranged on the right side of the slide box 11, the model of the infrared distance measuring sensor 9 is LDMS-80, the infrared distance measuring sensor 9 continuously emits infrared rays to the right side, the emitted infrared rays are directly irradiated to the right side surface in the weight adjusting box 2, the infrared rays are absorbed by the infrared distance measuring sensor 9 after being reflected, the distance measuring can continuously measure the distance from the right side of the slide box 11 to the right side of the weight adjusting box 2, when a semi-trailer is loaded or unloaded, a motor 12 (the motor is used for converting electric energy into mechanical energy according to the law of electromagnetic induction) arranged on the left side of the weight adjusting box 2 is started, the model of the motor 12 is CH/CV, the motor 12 rotates to drive a connected screw rod 7 to rotate, the screw rod 7 rotates to drive a connected slide box 11 to move leftwards or rightwards along the screw rod 7, the position of a balancing weight 10 in the slide box 11 can be adjusted according to the loading condition of goods, so that the balancing weight 10 moves to a proper position to stabilize the gravity center of a vehicle body 1, a support frame 4 rotates to move downwards along a vertical frame 3 when the goods are loaded or unloaded until a footing 5 is contacted with the ground, the vehicle body 1 can be supported, two ends of a cross rod 8 are welded on two sides in the vehicle body 1, two ends of a vertical rod 16 are both welded in the middle of the cross rod 8, an inclined rod 6 is welded on the surface of the cross rod 8, one end is welded on the surface of the vertical rod 16, a triangle is formed between the cross rod 8, the inclined rod 6 and the vertical rod 16, a triangle is formed between the inclined rod 6 and the vehicle body 1 and has stronger stability, namely, the cross rod 8, the vertical rod 16 and the inclined rod 6 are connected stably and have high strength, meanwhile, a rubber pad 15 is arranged in the triangle formed at the position, the rubber pad 15 is pasted on the surface of the vehicle body 1 and has the same shape as the triangle formed at the position, the rubber pad 15 has better vibration reduction and buffering capacity and can absorb vibration generated in the processes of loading, transporting and unloading goods, so that the overall vibration of the vehicle body 1 is reduced, meanwhile, brackets 17 are welded at two sides in the vehicle body 1 and incline the top ends of the brackets 17 are welded at two sides of the bottom end of the cross rod 8, the brackets 17, the cross rod 8 and the vehicle body 1 form a triangle, the stability and the strength between the cross rod 8 and the vertical rod 16 can be further improved, reinforcing plates made of hard alloy are arranged in the cross rod 8 and the vertical rod 16, and the hard alloy has high hardness, The characteristics of wear resistance, good strength and toughness can improve the strength of the cross rod 8 and the vertical rod 16, thereby improving the overall strength of the vehicle body 1 and avoiding the fracture thereof.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a low center of gravity semitrailer, includes automobile body (1), its characterized in that: the outer side of the vehicle body (1) is welded with a vertical frame (3), the vertical frame (3) is connected with a supporting frame (4) by screw thread, a cross rod (8) is welded in the vehicle body (1), an inclined rod (6) is welded on the cross rod (8), the bottom end of the cross rod (8) is welded with a weight adjusting box (2), the weight adjusting box (2) is connected with a sliding box (11) in a sliding way, an infrared distance measuring sensor (9) is arranged on the right side of the sliding box (11), a balancing weight (10) is arranged in the sliding box (11), two sides of the sliding box (11) are in threaded connection with a screw (7), the left side of the screw (7) is rotatably connected with a motor (12), the balance weight strips (13) are arranged on two sides in the car body (1), the vertical rods (16) are welded in the middle of the cross rod (8), equal fixedly connected with reinforcing plate (14) in horizontal pole (8) and montant (16), both sides welding has support (17) in automobile body (1).

2. A low center of gravity semitrailer as claimed in claim 1, wherein: the bottom end of the support frame (4) is fixedly connected with a bottom foot (5), and the motor (12) is installed on the left side of the weight adjusting box (2).

3. A low center of gravity semitrailer as claimed in claim 1, wherein: the left end of the screw rod (7) penetrates through the weight adjusting box (2), the inclined rod (6) is welded on two sides of the vertical rod (16), and a rubber pad (15) is bonded on the surface of the vehicle body (1).

4. A low center of gravity semitrailer as claimed in claim 1, wherein: the two ends of the vertical rod (16) are welded with the cross rod (8), and the top end of the support (17) is welded on the two sides of the bottom end of the cross rod (8).

5. A low center of gravity semitrailer as claimed in claim 1, wherein: the counterweight strip (13) is positioned on the inner side of a connecting piece (18), and the connecting piece (18) is bolted on two sides in the vehicle body (1) through bolts (19).

6. A low center of gravity semitrailer as claimed in claim 1, wherein: the counterweight strip (13) is positioned on the outer side of the support (17), and the counterweight box (2) is positioned on the inner side of the support (17).

7. A low center of gravity semitrailer as claimed in claim 1, wherein: the current input ends of the infrared distance measuring sensor (9) and the motor (12) are electrically connected with an external power supply through leads.