Variable cross-section frame and vehicle

Abstract

The variable cross-section frame comprises a left longitudinal beam and a right longitudinal beam, a cross beam structure is arranged between the left longitudinal beam and the right longitudinal beam, and auxiliary frames are arranged on the outer sides of the left longitudinal beam and the right longitudinal beam; frame height change areas are arranged at the corresponding positions of the left longitudinal beam and the right longitudinal beam, the height of the first height area is smaller than that of the second height area, and the height of the second height area is smaller than that of the third height area; a frame longitudinal beam width changing area is arranged between the left longitudinal beam and the right longitudinal beam, the width of the first width area is smaller than that of the second width area, the width of the second width area is larger than that of the third width area, and the width of the third width area is larger than that of the fourth width area. The first height area corresponds to the first width area, the second height area corresponds to the second width area, and the third height area corresponds to the third width area and the fourth width area. Compact arrangement of parts can be achieved, the size and the total weight of the frame and the chassis are reduced, and the trafficability of the chassis is improved. The utility model further provides a vehicle comprising the variable cross-section frame.

Description

Technical Field

[0001] The present application belongs to the technical field of vehicle mechanical mechanisms, and in particular relates to a variable-section frame and a vehicle comprising the variable-section frame. Background Art

[0002] Coiled tubing chassis used in oilfield development require a unified chassis height and overall width. The overall width must be kept within 2600mm while also accommodating the mounting of a high-power engine, a 600L fuel tank, four 50L air reservoirs, rear axle air suspension bags, rear axle brake chambers, dual rear tires, a reversible cab, and two front steering axles. Conventional, uniform-section chassis assemblies struggle to achieve these key component placement requirements within the 2600mm overall width. Utility Model Content

[0003] In response to one or more deficiencies in the prior art, the present application aims to provide a variable-section frame that can achieve compact arrangement of components, reduce the volume and total weight of the frame and chassis, and improve the passability of the chassis.

[0004] The technical solution adopted by this application to solve the problem is:

[0005] The variable-section frame includes a left longitudinal beam and a right longitudinal beam, a crossbeam structure is provided between the left longitudinal beam and the right longitudinal beam, and a subframe is provided on the outer sides of the left longitudinal beam and the right longitudinal beam;

[0006] Frame height variation zones are provided at corresponding positions on the left longitudinal beam and the right longitudinal beam, wherein the height of the first height zone is smaller than the height of the second height zone, and the height of the second height zone is smaller than the height of the third height zone;

[0007] A frame longitudinal beam width variation zone is provided between the left longitudinal beam and the right longitudinal beam, wherein the width of the first width zone is smaller than the width of the second width zone, the width of the second width zone is larger than the width of the third width zone, and the third width zone is larger than the width of the fourth width zone;

[0008] The first height region corresponds to the first width region, the second height region corresponds to the second width region, and the third height region corresponds to the third width region and the fourth width region.

[0009] Preferably, the crossbeam structure includes: a front crossbeam, a suspension transverse direct connection bracket, a transmission shaft bracket crossbeam, a rear tail beam and a subframe crossbeam;

[0010] The front crossbeam is located in the first width area at the front of the frame, the rear tail beam is located at the rear of the frame to connect the subframe and the left longitudinal beam and the right longitudinal beam, and the subframe crossbeam is used to connect the subframe and the left longitudinal beam and the subframe and the right longitudinal beam.

[0011] Preferably, a water tank protection bracket, an engine support, an air tank assembly bracket, a transmission shaft bracket, a transmission shaft hanger, an air conditioning condenser bracket, a transfer case support, a transfer case radiator support and a suspension mounting bracket are provided on the left longitudinal beam or the right longitudinal beam.

[0012] Preferably, the water tank protection bracket adopts a double rocker bracket.

[0013] Preferably, the air cylinder assembly bracket adopts a hanging bracket.

[0014] Preferably, the air conditioner condenser bracket adopts a two-piece symmetrical bent bracket.

[0015] The present application also provides a vehicle comprising the variable-section frame as described above.

[0016] Beneficial effects of this application:

[0017] In this application, the main components of the power transmission system in the entire chassis (engine, gearbox, transfer case) can be installed in the widened area of ​​the frame longitudinal beam width, maximizing the use of the frame space, achieving compact arrangement of components, reducing the overall width of the chassis (controlled within 2600mm, which is more than 350mm less than the total width of the conventional coiled tubing chassis) and the overall height (reduced by more than 150mm compared with the conventional solution), reducing the volume and total weight of the frame and chassis, and improving the chassis's passability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the main view of the embodiment of the present application;

[0019] Figure 2 A top view of an embodiment of the present application;

[0020] Figure 3 This is a front view of the left longitudinal beam in the embodiment of this application;

[0021] Figure 4 This is a top view of the left longitudinal beam in the embodiment of this application;

[0022] Figure 5 This is a front view of the right longitudinal beam in the embodiment of this application;

[0023] Figure 6 This is a top view of the right longitudinal beam in the embodiment of this application;

[0024] In the figure: 100 left longitudinal beam;

[0025] 200 right longitudinal beam;

[0026] 300 subframes;

[0027] 401 water tank protection bracket, 402 engine support, 403 air reservoir assembly bracket, 404 drive shaft bracket, 405 drive shaft hanger, 406 air conditioning condenser bracket, 407 transfer case support, 408 transfer case radiator support, 409 suspension bracket;

[0028] 501 front cross member, 502 suspension transverse direct connection bracket, 503 drive shaft bracket cross member, 504 rear tail beam, 505 subframe cross member;

[0029] 10 first height zone, 20 second height zone, 30 third height zone, 40 first width zone, 50 second width zone, 60 third width zone, 70 fourth width zone. DETAILED DESCRIPTION

[0030] In order to further illustrate the technical means and effects adopted by this application to achieve the intended purpose, the specific implementation methods of this application are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0031] The variable-section frame includes a left longitudinal beam 100 and a right longitudinal beam 200 , a crossbeam structure is provided between the left longitudinal beam 100 and the right longitudinal beam 200 , and a subframe 300 is provided outside the left longitudinal beam 100 and the right longitudinal beam 200 ;

[0032] Frame height variation zones are provided at corresponding positions on the left longitudinal beam 100 and the right longitudinal beam 200 , wherein the height of the first height zone 10 is less than the height of the second height zone 20 , and the height of the second height zone 20 is less than the height of the third height zone 30 ;

[0033] A frame longitudinal beam width variation zone is provided between the left longitudinal beam 100 and the right longitudinal beam 200 , wherein the width of the first width zone 40 is smaller than the width of the second width zone 50 , the width of the second width zone 50 is larger than the width of the third width zone 60 , and the third width zone 60 is larger than the width of the fourth width zone 70 ;

[0034] The first height region 10 corresponds to the first width region 40 , the second height region 20 corresponds to the second width region 50 , and the third height region 30 corresponds to the third width region 60 and the fourth width region 70 .

[0035] See attached Figure 2 and attached Figure 3 The left and right longitudinal beams 100 and 200 are the main load-bearing parts of the vehicle's superstructure and chassis, and are connected to the wheel axles through suspension. The subframe 300 and rear tail beam, together with the left and right longitudinal beams 100 and 200, form a complete vehicle frame assembly structure.

[0036] The left and right longitudinal beams 100 and 200 have two adaptive height variations within their full height range: the first height zone 10, the second height zone 20, and the third height zone 30. The first height zone 10, the lowest height area, serves as the cab front overhang mounting area. It is partially lowered to accommodate the cab front overhang bracket. The second height zone 20, the next lowest height area, serves as the engine mounting area. The longitudinal beams are lowered, widened outward, and cut away inboard to increase engine installation space. This allows the engine to be positioned completely between the left and right longitudinal beams 100 and 200 and beneath the cab, saving frame height, width, and length.

[0037] Between the left longitudinal beam 100 and the right longitudinal beam 200, the width has three adaptive changes within the entire length. Among them, the second width zone 50 is the maximum width zone, and the second width zone 50 corresponds to the second height zone 20. The engine is installed in the second width zone 50 to reduce the engine installation height. The transmission and transfer case are in the third width zone 60, and the drive shaft behind the transfer case is in the fourth width zone 70, which saves the frame width space to the maximum extent.

[0038] In a preferred embodiment, the crossbeam structure includes: a front crossbeam 501, a suspension transverse direct connection bracket 502, a transmission shaft bracket crossbeam 503, a rear tail beam 504, and a subframe crossbeam 505;

[0039] The front cross beam 501 is located in the first width zone 40 at the front of the frame, the rear tail beam 504 is located at the rear of the frame to connect the subframe 300 and the left longitudinal beam 100 and the right longitudinal beam 200, and the subframe cross beam 505 is used to connect the subframe 300 and the left longitudinal beam 100 and the subframe 300 and the right longitudinal beam 200.

[0040] The rear tail beam 504 assembly is the rear component of the frame, which mainly connects the rear of the longitudinal beam and the rear of the subframe 300, and also has the function of rear protection.

[0041] In a preferred embodiment, a water tank protection bracket 401, an engine support 402, an air cylinder assembly bracket 403, a drive shaft bracket 404, a drive shaft hanger 405, an air conditioning condenser bracket 406, a transfer case support 407, a transfer case radiator support 408 and a suspension bracket 409 are provided on the left longitudinal beam 100 or the right longitudinal beam 200.

[0042] Drive shaft bracket 404 and drive shaft hanger 405, the transfer case to the front axle drive shaft is connected and fixed with the aid of a bracket (the drive shaft is higher than the bracket), and the rear transfer case to the rear axle drive shaft is connected and fixed with the aid of a hanger (the drive shaft is lower than the bracket), so as to adjust the height difference between the connection flanges between the transmission and the transfer case, and between the transfer case and the rear axle, reduce the imbalance of the drive shaft during operation, reduce improper vibration and bumps, and reduce the chance of damage to the drive shaft.

[0043] The suspension bracket 409 has a left-right direct connection type (bridge 1 and 2) to improve the connection strength; and a frame-axle connection type (bridge 3, 4, and 5) that uses a thrust rod to interconnect the frame and the axle. A limited chain bracket is designed at the air suspension of the 5th axle to improve the connection strength, thereby ensuring normal power transmission of the axle and alleviating the rigid impact of the 3rd, 4th, and 5th axle drive axles on the frame during operation.

[0044] In a preferred embodiment, the water tank protection bracket 401 adopts a double rocker bracket.

[0045] The water tank protection bracket 401 adopts a double rocker type bracket screwed to the bottom of the water tank in front of the longitudinal beam. At the same time, a hole is opened in the front of the protection bracket to ensure normal heat dissipation of the water tank when in use and prevent external objects (branches, stones, etc.) from scratching the water tank and engine.

[0046] In a preferred embodiment, the gas cylinder assembly bracket 403 is a hanging bracket.

[0047] The air cylinder combination bracket 403 is welded to the bottom of the right longitudinal beam 200 using a hanging bracket, which increases the layout space of the air cylinder and can accommodate 4 to 6 50L air cylinders. The air cylinders are arranged in a centralized manner, and the related valves, dryers, and oil-water separators can be arranged in a centralized manner around them, reducing the difficulty of pipeline layout and daily maintenance of the system.

[0048] In a preferred embodiment, the air conditioner condenser bracket 406 is a two-piece symmetrical bent bracket.

[0049] The air conditioner condenser bracket 406 is arranged close to the air conditioner evaporator and adopts two symmetrical bent brackets, which are arranged on the outside of the head of the right longitudinal beam 200 and welded and fixed; the structure is simple, and the condenser and pipelines are easy to install and maintain.

[0050] The present application also provides a vehicle comprising the variable-section frame as described above.

Claims

1. A variable cross-section frame, characterized in that: It includes a left longitudinal beam and a right longitudinal beam, a crossbeam structure is provided between the left longitudinal beam and the right longitudinal beam, and a subframe is provided on the outer sides of the left longitudinal beam and the right longitudinal beam; Frame height variation zones are provided at corresponding positions on the left longitudinal beam and the right longitudinal beam, wherein the height of the first height zone is smaller than the height of the second height zone, and the height of the second height zone is smaller than the height of the third height zone; A frame longitudinal beam width variation zone is provided between the left longitudinal beam and the right longitudinal beam, wherein the width of the first width zone is smaller than the width of the second width zone, the width of the second width zone is larger than the width of the third width zone, and the third width zone is larger than the width of the fourth width zone; The first height region corresponds to the first width region, the second height region corresponds to the second width region, and the third height region corresponds to the third width region and the fourth width region.

2. A variable cross-section frame according to claim 1, characterized in that: The crossbeam structure includes: front crossbeam, suspension transverse direct connection bracket, drive shaft bracket crossbeam, rear tail beam and subframe crossbeam; The front crossbeam is located in the first width area at the front of the frame, the rear tail beam is located at the rear of the frame to connect the subframe and the left longitudinal beam and the right longitudinal beam, and the subframe crossbeam is used to connect the subframe and the left longitudinal beam and the subframe and the right longitudinal beam.

3. The variable cross-section frame according to claim 1, characterized in that: A water tank protection bracket, an engine support, an air reservoir assembly bracket, a transmission shaft bracket, a transmission shaft hanger, an air conditioner condenser bracket, a transfer case support, a transfer case radiator support and a suspension mounting bracket are arranged on the left longitudinal beam or the right longitudinal beam.

4. The variable cross-section frame according to claim 3, characterized in that: The water tank protection bracket adopts a double rocker type bracket.

5. The variable cross-section frame according to claim 3, characterized in that: The air cylinder combination bracket adopts a hanging bracket.

6. The variable cross-section frame according to claim 3, characterized in that: The air conditioner condenser bracket adopts two symmetrical bending brackets.

7. A vehicle, characterized in that: A cross-section frame comprising the cross-section frame according to any one of claims 1 to 6.

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