CN221214223U - Balance shaft beam assembly and heavy truck frame thereof - Google Patents

Abstract

The utility model discloses a balance shaft beam assembly and a heavy truck frame thereof, which belong to the technical field of truck frames. The heavy truck frame adopts the balance shaft beam assembly. The balance shaft beam assembly is a tubular beam, the integral weight of the balance shaft beam assembly can be effectively reduced through the tubular beam hollow structure, the light weight effect of the heavy truck frame can be guaranteed when the balance shaft beam assembly is installed in the heavy truck frame, the strength requirement on the frame is reduced, and the cracking risk is reduced.

Description

Balance shaft beam assembly and heavy truck frame thereof

Technical Field

The utility model relates to the technical field of truck frames, in particular to a balance shaft cross beam assembly and a heavy truck frame thereof.

Background

The balance shaft beam assembly for installing the balance shaft in the heavy truck frame usually adopts back-to-back groove type beams, the weight of the balance shaft beam assembly is large, the whole weight of the frame is lifted, the load bearing capacity requirement on the frame is increased, and once the strength of the frame is insufficient, the problem of cracking easily occurs.

Disclosure of utility model

The utility model aims to solve the technical problems and provide the balance shaft beam assembly and the heavy truck frame thereof, wherein the balance shaft beam assembly is a tubular beam, the hollow structure of the tubular beam can effectively reduce the overall weight of the balance shaft beam assembly, and when the balance shaft beam assembly is installed in the heavy truck frame, the light weight effect of the heavy truck frame can be ensured, the strength requirement on the frame is reduced, and the cracking risk is reduced.

In order to achieve the above object, the present utility model provides the following solutions: the utility model discloses a balance shaft and cross beam assembly, which comprises a pipe beam, wherein two ends of the pipe beam are respectively provided with a longitudinal beam mounting plate, the longitudinal beam mounting plates are provided with a suspension bolt hole and longitudinal beam bolt holes for connecting with a longitudinal beam, the pipe wall of the pipe beam is provided with a balance shaft mounting plate, a brake valve mounting hole and two groups of thrust rod connectors, the balance shaft mounting plate and the brake valve mounting hole are respectively arranged at two sides of the pipe beam along the direction perpendicular to the longitudinal beam length direction, the balance shaft mounting plate is provided with balance shaft bolt holes respectively arranged at two sides of the pipe beam along the direction parallel to the longitudinal beam length direction, the two groups of thrust rod connectors are respectively arranged at two sides of the pipe beam along the direction perpendicular to the longitudinal beam length direction, and the thrust rod connectors are provided with thrust rod mounting holes.

Preferably, the pipe beam comprises a cover plate for closing the pipe orifice of the pipe beam, a cover plate screw hole is formed in the cover plate, the pipe orifice of the pipe beam is provided with a pipe orifice screw hole corresponding to the cover plate screw hole, and a cover plate embedding opening for embedding the cover plate is formed in the longitudinal beam mounting plate.

Preferably, a boss structure for arranging the suspension bolt holes is arranged on one surface of the longitudinal beam mounting plate, which is opposite to the longitudinal beam.

Preferably, the tubular beam is a spheroidal graphite cast iron tubular beam.

The invention also discloses a heavy truck frame, which adopts the balance shaft beam assembly.

Preferably, the device comprises two longitudinal beams which are parallel to each other and arranged at intervals, wherein a balance shaft installation part is arranged on the longitudinal beam and positioned between the middle part and the tail part of the longitudinal beam, a cross beam bolt hole corresponding to the longitudinal beam bolt hole is arranged on the balance shaft installation part, a base plate is arranged between the longitudinal beam and the longitudinal beam installation plate, a base plate bolt hole corresponding to the longitudinal beam bolt hole is arranged on the base plate, and the base plate bolt hole, the longitudinal beam bolt hole and the cross beam bolt hole are connected through bolts.

Preferably, the vehicle frame comprises a vehicle frame tail beam assembly and a reinforcing beam assembly, wherein the tail parts of two mutually parallel longitudinal beams are connected through the vehicle frame tail beam assembly, and the reinforcing beam assembly comprises an upper L-shaped reinforcing plate, a lower L-shaped reinforcing plate, a front groove-shaped beam and a rear groove-shaped beam; the two flange plates of the front groove-shaped cross beam are respectively riveted with the cross plate of the upper L-shaped reinforcing plate and the cross plate of the lower L-shaped reinforcing plate, the two flange plates of the rear groove-shaped cross beam are respectively riveted with the cross plate of the upper L-shaped reinforcing plate and the cross plate of the lower L-shaped reinforcing plate, the front groove-shaped cross beam and the rear groove-shaped cross beam are sequentially arranged along the head-to-tail direction of the longitudinal beam, and the web of the front groove-shaped cross beam and the web of the rear groove-shaped cross beam are arranged in opposite directions; the riser of going up L type reinforcing plate with the diaphragm laminating of L type reinforcing plate down, go up the riser of L type reinforcing plate with the riser of L type reinforcing plate down is equipped with longeron mounting hole and longeron mounting hole down respectively, be equipped with on the middle part of longeron and go up reinforcing plate mounting hole and lower reinforcing plate mounting hole, go up the reinforcing plate mounting hole with lower reinforcing plate mounting hole is arranged in proper order along the direction of perpendicular to two longeron interval direction, go up the longeron mounting hole with go up the corresponding and through bolted connection of reinforcing plate mounting hole, lower reinforcing plate mounting hole with the longeron mounting hole corresponds and passes through bolted connection down.

Preferably, longitudinal beam connecting holes are formed in the web surfaces of the two sides of the frame tail beam assembly, and tail beam connecting holes corresponding to the longitudinal beam connecting holes are formed in the longitudinal beams.

Preferably, the saddle support plate is installed to opposite sides including two the longeron, the saddle support plate includes web face and face of buckling, the web face is equipped with the saddle bolt hole, be equipped with on the longeron with the connecting bolt hole that the saddle bolt hole corresponds, the face of buckling is equipped with saddle mounting hole.

Preferably, the stringers are channel steel beams.

Compared with the prior art, the utility model has the following technical effects:

According to the utility model, the tubular beam serving as the main structure in the balance shaft beam assembly is of a hollow tubular structure, so that the integral weight of the balance shaft beam assembly can be effectively reduced, the light weight effect of the heavy truck frame can be ensured when the balance shaft beam assembly is arranged in the heavy truck frame, the strength requirement on the frame is reduced, and the cracking risk is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic structural view of a heavy truck frame;

FIG. 2 is an enlarged view of a portion of the balance shaft beam assembly of FIG. 1;

FIG. 3 is a schematic structural view of a balance shaft beam assembly (including a cover plate);

FIG. 4 is a schematic view of the balance shaft beam assembly (without cover plate);

FIG. 5 is a schematic structural view of a stringer mounting plate;

FIG. 6 is a schematic structural view of a cover plate;

FIG. 7 is a schematic structural view of a backing plate;

FIG. 8 is an enlarged view of a portion of the reinforcement beam assembly of FIG. 1;

FIG. 9 is a schematic structural view of a reinforcement beam assembly;

FIG. 10 is a schematic structural view of a frame tail beam assembly;

fig. 11 is a schematic structural view of the saddle support plate.

Reference numerals illustrate:

1. A longitudinal beam; 2. a reinforcing beam assembly; 3. balance shaft beam assembly; 4. a frame tail beam assembly; 5. a backing plate; 6. a saddle support plate;

101. A cross beam bolt hole; 102. an upper reinforcing plate mounting hole; 103. lower reinforcing plate mounting hole

201. An upper L-shaped reinforcing plate; 202. a lower L-shaped reinforcing plate; 203. a front channel beam; 204. a rear slot-type cross beam; 205. an upper longitudinal beam mounting hole; 206. a side sill mounting hole;

301. A tubular beam; 302. a stringer mounting plate; 303. a balance shaft mounting plate; 304. a thrust rod connector; 305. a cover plate; 306. a boss structure; 307. a cover plate embedding port; 308. longitudinal beam bolt holes; 309. suspension bolt holes; 310. a brake valve mounting hole; 311. balance shaft bolt holes; 312. a thrust rod mounting hole; 313. a cover plate screw hole;

401. A stringer connecting hole;

501. A backing plate bolt hole;

601. saddle bolt holes; 602. saddle mounting holes.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

The present embodiment provides a balance shaft cross beam assembly, as shown in fig. 1 to 11, including a tubular beam 301, wherein two ends of the tubular beam 301 are respectively provided with a longitudinal beam mounting plate 302 for connecting with two longitudinal beams 1 of a vehicle frame. The side member mounting plate 302 is provided with a side member bolt hole 308 and a suspension bolt hole 309, the side member mounting plate 302 and the side member 1 can be bolt-connected through the side member bolt hole 308, and the suspension and the side member mounting plate 302 can be bolt-connected through the suspension bolt hole 309. The number and positions of the longitudinal beam bolt holes 308 and the suspension bolt holes 309 are mainly specifically set according to actual needs. The pipe wall of the pipe beam 301 is provided with a balance shaft mounting plate 303, a brake valve mounting hole 310 and a thrust rod connector 304. The balance shaft mounting plate 303 is fixedly connected to one side of the pipe wall of the pipe beam 301, the brake valve mounting hole 310 is located on the opposite side of the balance shaft mounting plate 303, and the connection line between the balance shaft mounting plate 303 and the brake valve mounting hole 310 is perpendicular to the longitudinal direction of the longitudinal beam and also perpendicular to the axial direction of the pipe beam 301. Two groups of balance shaft bolt holes 311 are formed in the balance shaft mounting plate 303, and each group at least comprises one balance shaft bolt hole 311. Two groups of balance shaft bolt holes 311 are respectively arranged on two sides of the tubular beam 301 along the length direction parallel to the longitudinal beam and are used for being connected with the balance shaft bolts. The number of the two groups of the thrust rod connectors 304 is determined according to the number of the thrust rods on the two sides of the tubular beam 301, if two thrust rods are respectively arranged on the two sides of the tubular beam 301, the number of the two groups of the thrust rod connectors 304 is correspondingly two. Each of the thrust rod connectors is provided with a thrust rod mounting hole 312 for mounting the thrust rod. The main structure of the tubular beam 301 serving as the balance shaft beam assembly 3 is a hollow tubular structure, so that the weight reduction effect is obvious, the integral weight of the balance shaft beam assembly 3 can be effectively reduced, and the strength requirement on the vehicle frame is reduced when the balance shaft beam assembly is installed on the vehicle frame.

In this embodiment, as shown in fig. 1 to 11, the balance shaft beam assembly 3 further includes a cover plate 305. Cover plate 305 is provided with cover plate screw holes 313, and the nozzles of tube beams 301 are provided with nozzle screw holes. The number and positions of the pipe orifice screw holes correspond to those of the cover plate screw holes 313, and the cover plate 305 can be buckled on the pipe orifice of the pipe beam 301 through screws so as to seal the pipe orifice of the pipe beam 301. The stringer mounting plate 302 is provided with a cover plate insertion opening 307 into which the cover plate 305 is inserted. After the pipe orifices at the two ends of the pipe beam 301 are covered with the cover plate 305, the corrosion resistance of the inner part of the cavity of the pipe beam 301 can be effectively improved. Preferably, the cover plate 305 is provided with three cover plate screw holes 313, but not limited thereto, and may be adjusted as needed.

Further, in this embodiment, as shown in fig. 1 to 11, a boss structure 306 is disposed on a side of the side beam mounting plate 302 facing away from the side beam 1, and the suspension bolt holes 309 are disposed on the boss structure 306, so that the contact area between the boss surface of the boss structure 306 and the bolt can be increased. Preferably, the thickness of the boss structure 306 is 3mm, but is not limited to this number, and may be adjusted as needed.

In this embodiment, as shown in FIGS. 1 to 11, the tubular beam 301 is a spheroidal graphite cast iron tubular beam, preferably QT900-10 spheroidal graphite cast iron.

Further, in the present embodiment, as shown in fig. 1 to 11, the brake valve mounting hole 310 is an M12 screw hole. The thrust rod mounting hole 312 is an M20 threaded hole.

Example 2

This embodiment provides a heavy truck frame, as shown in fig. 1 to 11, employing the balance shaft beam assembly 3 of embodiment 1. The balance shaft beam assembly 3 is a hollow tubular balance shaft beam, has obvious light weight effect compared with a back-to-back groove type balance shaft beam, and can effectively reduce the overall weight of the frame.

Further, in this embodiment, as shown in fig. 1 to 11, the heavy truck frame includes two parallel stringers 1 arranged at intervals, and a balance shaft mounting portion is disposed on the stringers 1, and the balance shaft mounting portion is located between the middle portion and the tail portion of the stringers 1. The balance shaft mounting part is provided with cross beam bolt holes 101, and the number and positions of the cross beam bolt holes 101 are matched with those of the longitudinal beam bolt holes 308 on the longitudinal beam mounting plate 302. A base plate 5 is arranged between the longitudinal beam 1 and the longitudinal beam mounting plate 302, base plate bolt holes 501 are arranged on the base plate 5, and the number and positions of the base plate bolt holes 501 are matched with those of the cross beam bolt holes 101 and the longitudinal beam bolt holes 308. The side member 1, the pad 5, and the side member mounting plate 302 can be bolted together by screwing bolts into the side member bolt holes 308, the pad bolt holes 501, and the cross member bolt holes 101. Specifically, two beam mounting plates 302 of the balance shaft beam assembly 3 are respectively bolted to the balance shaft mounting portions of the two beams 1.

At present, two groove-shaped cross beams are usually arranged in the middle of a heavy truck frame, a frame tail beam is arranged at the tail part, a back-to-back cross beam is arranged at the balance shaft, a plurality of upper reinforcing plates and lower reinforcing plates are additionally arranged between the head part and the tail part in the direction, the reinforced truck frame bears, the plurality of reinforcing plates can obviously improve the overall weight of the truck frame, more parts are arranged, the assembly efficiency can be reduced, the weight of the heavy truck frame is reduced for optimizing the heavy truck frame, and the assembly efficiency is improved. Specifically, as shown in fig. 1 to 11, the heavy truck frame further comprises a reinforcing beam assembly 2 and a frame tail beam assembly 4, the middle parts of the two longitudinal beams 1 are connected through the reinforcing beam assembly 2, the tail parts of the two longitudinal beams 1 are connected through the frame tail beam assembly 4, and the balance shaft beam assembly 3 is positioned between the reinforcing beam assembly 2 and the frame tail beam assembly 4.

The reinforcement beam assembly 2 includes an upper L-shaped reinforcement plate 201, a lower L-shaped reinforcement plate 202, a front channel beam 203, and a rear channel beam 204. The two flange plates of the front channel beam 203 are respectively riveted with the transverse plate of the upper L-shaped reinforcing plate 201 and the transverse plate of the lower L-shaped reinforcing plate 202. The two flange plates of the rear channel beam 204 are respectively riveted with the transverse plate of the upper L-shaped reinforcing plate 201 and the transverse plate of the lower L-shaped reinforcing plate 202. The front groove-shaped cross beam 203 and the rear groove-shaped cross beam 204 are sequentially arranged along the head-to-tail direction of the longitudinal beam 1, and the web of the front groove-shaped cross beam 203 and the web of the rear groove-shaped cross beam 204 are arranged in opposite directions. The riser of the upper L-shaped reinforcing plate 201 is attached to the transverse plate of the lower L-shaped reinforcing plate 202, the riser of the upper L-shaped reinforcing plate 201 is provided with an upper longitudinal beam mounting hole 205, and the riser of the lower L-shaped reinforcing plate 202 is provided with a lower longitudinal beam mounting hole 206. The middle part of the longitudinal beam 1 is provided with an upper reinforcing plate mounting hole 102 and a lower reinforcing plate mounting hole 103, and the upper reinforcing plate mounting hole 102 and the lower reinforcing plate mounting hole 103 are sequentially arranged along a direction perpendicular to the interval direction of the two longitudinal beams 1. The upper side rail mounting holes 205 and the upper reinforcing plate mounting holes 102 are correspondingly arranged in number and position so that the upper side rail mounting holes 205 and the upper reinforcing plate mounting holes 102 are connected by bolts. The lower side rail mounting holes 206 and the upper reinforcing plate mounting holes 102 correspond in number and position so that the upper side rail mounting holes 205 and the upper reinforcing plate mounting holes 102 are connected by bolts.

The reinforcing beam assembly 2 combines two groove-shaped beams (the front groove-shaped beam 203 and the rear groove-shaped beam 204) into a whole, the bearing strength of the reinforcing beam assembly is obviously improved, meanwhile, the effective contact area between the upper L-shaped reinforcing plate 201 and the frame longitudinal beam 1 is larger, the wing surface bending structures of the flange plates connected with the lower L-shaped reinforcing plate 202 of the front groove-shaped beam 203 and the rear groove-shaped beam 204 are beneficial to the arrangement of transmission shafts, and the reinforcing beam assembly 2 is easier to install and the arrangement of peripheral parts under the condition of improving the strength performance.

Further, in the present embodiment, as shown in fig. 1 to 11, eight upper side member mounting holes 205 are provided in the riser of the upper L-shaped reinforcing plate 201, the riser of the upper L-shaped reinforcing plate 201 extends for 175mm in the longitudinal direction (perpendicular to the direction in which the two side members 1 are spaced apart), and the upper L-shaped reinforcing plate 201 extends for 690mm in the lateral direction (longitudinal direction of the side members 1). Four lower longitudinal beam mounting holes 206 are formed in the vertical plate of the lower L-shaped reinforcing plate 202, the vertical plate of the lower L-shaped reinforcing plate 202 extends longitudinally (perpendicular to the spacing direction of the two longitudinal beams 1) by 50mm, and transversely (longitudinal beam 1 length direction) extends 690mm. The parameters are reference values and can be adjusted according to the needs.

Further, in this embodiment, as shown in fig. 1 to 11, the side member connection holes 401 are provided on the side web surfaces of the frame tail member assembly 4, and the tail member connection holes are provided on the side members 1. The tail beam connecting holes on the single longitudinal beam 1 correspond to the number and positions of the longitudinal beam connecting holes 401 on the ventral surface of one side of the frame tail beam assembly 4, so that the ventral surfaces of the two sides of the frame tail beam assembly 4 are connected with the tail bolts of the two longitudinal beams 1.

The present embodiment, as shown in fig. 1 to 11, further comprises a saddle support plate 6. Saddle support plates 6 are mounted on opposite sides of both stringers 1. The saddle support plate 6 includes a web surface and a bending surface. The web face is equipped with saddle bolt hole 601, is equipped with the connecting bolt hole on the longeron 1, and connecting bolt hole is corresponding with saddle bolt hole 601 quantity and position to bolted connection is convenient. The bending surface is provided with saddle mounting holes 602 for mounting the saddle. Specifically, if the web surface is provided with three saddle bolt holes 601, the bending surface is provided with six saddle mounting holes 602, and the above parameters are reference values and can be adjusted as required.

Further, in this embodiment, as shown in fig. 1 to 11, the longitudinal beam 1 is a channel-shaped steel beam, preferably high-strength steel, so that the overall static strength, rigidity and modal performance of the frame can be greatly improved. If the longitudinal beam 1 adopts high-strength steel 750L, the materials of the reinforcing beam assembly 2 and the frame tail beam assembly 4 are high-strength steel 600L in consideration of the frame cost.

The principles and embodiments of the present utility model have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present utility model; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.

Claims (10)

1. The utility model provides a balance shaft crossbeam assembly, its characterized in that, includes the tubular beam, the both ends of tubular beam all are equipped with the longeron mounting panel, be equipped with the suspension bolt hole on the longeron mounting panel and be used for the longeron bolt hole of being connected with the longeron, be equipped with balance shaft mounting panel, brake valve mounting hole and two sets of distance rod connectors on the pipe wall of tubular beam, balance shaft mounting panel and brake valve mounting hole divide to establish along perpendicular to longeron length direction the both sides of tubular beam, be equipped with on the balance shaft mounting panel and divide to establish along being on a parallel with longeron length direction the balance shaft bolt hole of the both sides of tubular beam, two sets of distance rod connectors divide to establish along perpendicular to longeron length direction the both sides of tubular beam, be equipped with the distance rod mounting hole on the distance rod connector.

2. The balance shaft beam assembly of claim 1, comprising a cover plate for closing the mouth of the pipe beam, wherein the cover plate is provided with a cover plate screw hole, the mouth of the pipe beam is provided with a mouth screw hole corresponding to the cover plate screw hole, and the stringer mounting plate is provided with a cover plate embedding opening into which the cover plate is embedded.

3. The balance shaft cross beam assembly according to claim 1 or 2, wherein a boss structure for the suspension bolt hole is provided on a side of the side beam mounting plate facing away from the side beam.

4. The balance shaft beam assembly of claim 1 wherein the tubular beam is a ductile iron tubular beam.

5. A heavy truck frame employing a balance axle beam assembly as claimed in any one of claims 1 to 4.

6. The heavy truck frame according to claim 5, comprising two parallel stringers arranged at intervals, wherein a balance shaft mounting part is arranged on the stringers and positioned between the middle part and the tail part of the stringers, a cross beam bolt hole corresponding to the longitudinal beam bolt hole is arranged on the balance shaft mounting part, a base plate is arranged between the stringers and the stringer mounting plate, a base plate bolt hole corresponding to the longitudinal beam bolt hole is arranged on the base plate, and the base plate bolt hole, the longitudinal beam bolt hole and the cross beam bolt hole are connected through bolts.

7. The heavy truck frame of claim 6 comprising a frame tail assembly and a reinforcement beam assembly, the tail portions of two mutually parallel stringers being connected by the frame tail assembly, the reinforcement beam assembly comprising an upper L-shaped reinforcement plate, a lower L-shaped reinforcement plate, a front channel beam, and a rear channel beam; the two flange plates of the front groove-shaped cross beam are respectively riveted with the cross plate of the upper L-shaped reinforcing plate and the cross plate of the lower L-shaped reinforcing plate, the two flange plates of the rear groove-shaped cross beam are respectively riveted with the cross plate of the upper L-shaped reinforcing plate and the cross plate of the lower L-shaped reinforcing plate, the front groove-shaped cross beam and the rear groove-shaped cross beam are sequentially arranged along the head-to-tail direction of the longitudinal beam, and the web of the front groove-shaped cross beam and the web of the rear groove-shaped cross beam are arranged in opposite directions; the riser of going up L type reinforcing plate with the diaphragm laminating of L type reinforcing plate down, go up the riser of L type reinforcing plate with the riser of L type reinforcing plate down is equipped with longeron mounting hole and longeron mounting hole down respectively, be equipped with on the middle part of longeron and go up reinforcing plate mounting hole and lower reinforcing plate mounting hole, go up the reinforcing plate mounting hole with lower reinforcing plate mounting hole is arranged in proper order along the direction of perpendicular to two longeron interval direction, go up the longeron mounting hole with go up the corresponding and through bolted connection of reinforcing plate mounting hole, lower reinforcing plate mounting hole with the longeron mounting hole corresponds and passes through bolted connection down.

8. The heavy truck frame of claim 7, wherein the frame tail assembly is provided with a rail attachment aperture on each of the lateral web surfaces, and wherein the rail is provided with a tail beam attachment aperture corresponding to the rail attachment aperture.

9. The heavy truck frame of claim 7, comprising two side members each having a saddle support plate mounted thereon on opposite sides thereof, the saddle support plates comprising web surfaces having saddle bolt holes and a bending surface having saddle mounting holes.

10. The heavy truck frame of claim 6 wherein said stringers are channel beams.