A tractor experimental conveyor line roller assembly with reduced wear
By introducing synchronous reverse rotation of support wheels, automatic cleaning of cleaning brushes, and regular application of lubricating oil into the roller assembly of the tractor experimental conveyor line, the problem of roller wear was solved, and the stability and service life of the equipment were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU LUOJUN MACHINE EQUIP
- Filing Date
- 2025-05-15
- Publication Date
- 2026-05-29
AI Technical Summary
The roller assembly of the tractor test conveyor line is prone to wear during long-term load operation, resulting in uneven surfaces or bearing failure, which affects the accuracy of experimental data.
A roller assembly comprising a mounting base, support wheels, a drive motor, a cleaning mechanism, and a lubrication mechanism is designed. The wear of the rollers is reduced through the synchronous reverse rotation of the support wheels, the automatic cleaning of the cleaning brush, and the periodic application of lubricating oil.
This effectively reduces roller wear, improves equipment stability and lifespan, and lowers maintenance costs.
Smart Images

Figure CN224298005U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tractor experimental equipment technology, specifically to a tractor experimental conveyor roller assembly that reduces wear. Background Technology
[0002] Tractor test conveyor lines are key equipment used to test tractor performance. They are mainly used to simulate the operating conditions of tractors under different working conditions to evaluate their performance indicators such as power, durability, and fuel economy. Test conveyor lines typically consist of multiple roller assemblies. These roller assemblies achieve the experimental purpose by contacting and driving the tractor tires. Due to the heavy load and long operating time during tractor testing, the outer surface of the roller assemblies and bearings are prone to wear due to friction, leading to uneven roller surfaces or bearing failure, which affects the accuracy of the experimental data. Utility Model Content
[0003] The purpose of this utility model is to address the defects and shortcomings of the existing technology by providing a reasonably designed and easy-to-use roller assembly for a tractor test conveyor line that reduces wear, effectively solving the aforementioned defects of the existing technology.
[0004] To achieve the above objectives, this utility model adopts the following technical solution: it includes a mounting base and rollers, wherein the mounting base is U-shaped, and several rollers are equidistantly connected to the interior of the mounting base via bearings; it also includes:
[0005] The support wheels consist of several wheels, which are arranged in pairs symmetrically against each other on the underside of the rollers. The front and rear ends of the support wheels are respectively screwed into the vertical plates on the front and rear sides of the mounting base via bearings. The two support wheels on the adjacent side of the two adjacent groups are arranged against each other.
[0006] The drive motor is embedded and fixed in one side wall of the mounting base. The drive motor is connected to one end of one of the support wheels. A door panel is provided on the front side of the drive motor. The door panel is embedded in the front side wall of the mounting base. One side of the door panel is screwed to the mounting base by a hinge.
[0007] The cleaning mechanism is housed within the mounting base and is configured in conjunction with several rollers.
[0008] The lubrication mechanism is located inside the mounting base and is configured to cooperate with both ends of the vertical tube roller.
[0009] With the above technical solution, the tractor moves on several rollers. When in use, the drive motor is started, which drives the connected support wheel to rotate. The support wheel drives the roller on its upper side to rotate. At the same time, two opposing support wheels rotate synchronously in opposite directions, thus causing several rollers to rotate. The support wheel can also support the rollers, thereby improving the stability of the rollers. During use, the several rollers can be cleaned by the cleaning mechanism, and the two ends of the rollers can be lubricated by the lubrication mechanism, thereby reducing wear.
[0010] As a further improvement of this utility model, the cleaning mechanism includes:
[0011] The movable blocks are multiple in number and are arranged one-to-one on the underside between two adjacent rollers. The movable blocks are connected to the mounting base through a reciprocating mechanism.
[0012] The rotating shaft consists of several shafts, each of which is screwed into the moving block via bearings. After passing through the two side walls of the moving block, cleaning brushes are fixed at both ends of the rotating shafts. The cleaning brushes are engaged with adjacent rollers in abutment.
[0013] The rotating rods are of several kinds, and they are screwed into the moving block one by one through bearings. The lower end of the rotating rod is connected to the middle end of the rotating shaft through a bevel gear pair, and the upper end of the rotating rod is connected to the reciprocating mechanism.
[0014] Through the above technical solution, the reciprocating mechanism drives the moving block to move back and forth, the moving block drives the cleaning brush plate to move, and during the movement, the reciprocating mechanism drives the rotating rod to rotate, the rotating rod drives the rotating shaft to rotate through the bevel gear pair, and the rotating shaft drives the cleaning brush plates on both sides to rotate, thereby cleaning the roller through the cleaning brush plates.
[0015] As a further improvement of this utility model, annular slide rails are fixed on both sides of the movable block, and the annular slide rails are slidably arranged in the annular grooves on the side walls of the adjacent cleaning brush plates.
[0016] The above technical solution can increase the stability of the cleaning brush plate during rotation.
[0017] As a further improvement of this utility model, the reciprocating mechanism includes:
[0018] The reciprocating lead screw consists of several screws, each screwed into the moving block via a threaded connection. The front and rear ends of the reciprocating lead screw are screwed onto the mounting base via bearings. The reciprocating lead screws are connected in pairs via a synchronous pulley transmission assembly. Guide rods are symmetrically arranged on the upper side of the moving block, and the front and rear ends of the guide rods are fixed to the front and rear inner walls of the mounting base, respectively.
[0019] A reciprocating motor is embedded and fixed in one side wall of the mounting base, and the output shaft of the reciprocating motor is connected to one of the reciprocating lead screws;
[0020] The fixed frame consists of several fixed frames, which are arranged one-to-one on the upper side of the movable block. The front and rear sides of the fixed frame are fixedly connected to the inner walls of the front and rear sides of the mounting base. The upper end of the rotating rod is movably inserted into the fixed frame.
[0021] The linkage gear consists of several gears, each corresponding to and fixed to one end of the rotating rod located inside the fixed frame. The linkage gear meshes with the teeth on one side of the inner wall of the fixed frame.
[0022] With the above technical solution, the reciprocating motor is started, which drives the reciprocating lead screw connected to it to rotate. The reciprocating lead screw is coordinated by several synchronous gear transmission components to make several other reciprocating lead screws rotate synchronously. The reciprocating lead screw drives the moving block to move. When the moving block moves, the linkage gear on the rotating rod meshes with the teeth on the fixed frame, thereby causing the linkage gear to rotate. The linkage gear drives the rotating rod to rotate.
[0023] As a further improvement of this utility model, a guide plate is fixed on the top wall of the fixed frame. The cross-section of the guide plate is tapered, and both sides of the lower side wall of the guide plate are set on the same plane as the two sides of the fixed frame; this can prevent dust from accumulating on the top wall of the fixed frame.
[0024] As a further improvement of this utility model, the lubrication mechanism includes:
[0025] The collar, which consists of several collars, is symmetrically and movablely fitted in pairs at the front and rear ends of the roller. The collar is fixedly connected to the vertical plate of the mounting base. The collar has a hollow internal structure, and several liquid outlets are set at equal angles on the inner ring wall of the collar.
[0026] There are two No. 1 diversion pipes, which are respectively embedded in the vertical plates on the front and rear sides of the mounting base. Several conveying pipes are equally spaced through each No. 1 diversion pipe, and the conveying pipes are inserted into the outer ring wall of the collar one by one.
[0027] The second diversion pipe is embedded in the horizontal plate of the mounting base. One end of the second diversion pipe passes through one side of the mounting base and is connected to the external lubricating oil through an external pump. Both the front and rear ends of the outer ring wall of the second diversion pipe are connected to connecting pipes, and the upper end of the connecting pipe is connected to the first diversion pipe.
[0028] The above technical solution involves periodically starting an external pump to draw lubricating oil into the No. 2 diversion pipe, then through the connecting pipe, the No. 1 diversion pipe, and the delivery pipe to the collar, and finally through the outlet to be applied to the roller, thereby improving the lubrication effect.
[0029] Compared with the prior art, the beneficial effects of this utility model are as follows: The wear-reducing roller assembly for a tractor test conveyor line described in this utility model can reduce wear on the rollers by optimizing the mounting structure and integrating cleaning and lubrication functions, thereby achieving a comprehensive improvement in the service life of the equipment. This utility model has the advantages of reasonable design and low manufacturing cost. Attached Figure Description
[0030] Figure 1 This is a schematic diagram of the structure of this utility model.
[0031] Figure 2 This is an exploded view of the present invention.
[0032] Figure 3 This is a schematic diagram of the cleaning mechanism in this utility model.
[0033] Figure 4 This is an exploded view of the cleaning mechanism in this utility model.
[0034] Explanation of reference numerals in the attached figures:
[0035] Mounting base 1, roller 2, support wheel 3, drive motor 4, door panel 5, cleaning mechanism 6, moving block 6-1, reciprocating mechanism 6-2, reciprocating screw 6-2-1, guide rod 6-2-2, reciprocating motor 6-2-3, fixed frame 6-2-4, linkage gear 6-2-5, rotating shaft 6-3, cleaning brush plate 6-4, rotating rod 6-5, lubrication mechanism 7, collar 7-1, first diversion pipe 7-2, conveying pipe 7-3, second diversion pipe 7-4, connecting pipe 7-5, annular slide rail 8, guide plate 9. Detailed Implementation
[0036] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0037] Example 1:
[0038] like Figures 1-4 As shown, this embodiment includes a mounting base 1 and rollers 2. The mounting base 1 is U-shaped, and several rollers 2 are equidistantly connected to the interior of the mounting base 1 via bearings. It also includes:
[0039] Support wheels 3, there are several support wheels 3, and they are arranged in pairs symmetrically and abutting against each other on the lower side of roller 2. The front and rear ends of the support wheels 3 are respectively screwed into the vertical plates on the front and rear sides of the mounting base 1 through bearings. The two support wheels 3 on the adjacent side of the two adjacent groups are abutting against each other.
[0040] The drive motor 4 is embedded and fixed in one side wall of the mounting base 1. The drive motor 4 is connected to one end of one of the support wheels 3. A door panel 5 is provided on the front side of the drive motor 4. The door panel 5 is embedded in the front side wall of the mounting base 1. One side of the door panel 5 is screwed to the mounting base 1 by a hinge.
[0041] The cleaning mechanism 6 is disposed in the mounting base 1 and is configured in conjunction with several rollers 2;
[0042] The lubrication mechanism 7 is disposed in the mounting base 1 and is configured to cooperate with both ends of the roller 2.
[0043] Example 2:
[0044] See Figure 2-4 As shown, based on Embodiment 1, the cleaning mechanism 6 includes:
[0045] The movable block 6-1 consists of several blocks, each corresponding to one another on the underside between two adjacent rollers 2. The movable block 6-1 is connected to the mounting base 1 via a reciprocating mechanism 6-2.
[0046] A rotating shaft 6-3, comprising several shafts, is screwed into the movable block 6-1 via bearings. Each end of the rotating shaft 6-3 passes through the two side walls of the movable block 6-1 and is then welded to a cleaning brush plate 6-4. The cleaning brush plate 6-4 engages with the adjacent roller 2 in contact with the roller. Annular slide rails 8 are welded to both side walls of the movable block 6-1. These slide rails 8 are slidably positioned within annular grooves on the side walls of the adjacent cleaning brush plates 6-4, increasing the stability of the cleaning brush plates 6-4 during rotation.
[0047] There are several rotating rods 6-5, and they are screwed into the moving block 6-1 one by one through bearings. The lower end of the rotating rod 6-5 is connected to the middle end of the rotating shaft 6-3 through a bevel gear pair, and the upper end of the rotating rod 6-5 is connected to the reciprocating mechanism 6-2.
[0048] Example 3:
[0049] See Figure 3-4 As shown, based on Embodiment 2, the reciprocating mechanism 6-2 includes:
[0050] A reciprocating lead screw 6-2-1 is provided. There are several reciprocating lead screws 6-2-1, and they are screwed into the moving block 6-1 one by one. The front and rear ends of the reciprocating lead screws 6-2-1 are screwed onto the mounting base 1 through bearings. The several reciprocating lead screws 6-2-1 are connected in pairs through synchronous wheel transmission assembly. Guide rods 6-2-2 are symmetrically arranged on the upper side of the moving block 6-1. The front and rear ends of the guide rods 6-2-2 are welded and fixed to the front and rear inner walls of the mounting base 1, respectively.
[0051] The reciprocating motor 6-2-3 is embedded in and fixed to the rear side wall of the mounting base 1 by bolts. The output shaft of the reciprocating motor 6-2-3 is connected to the reciprocating lead screw 6-2-1 on the left side.
[0052] A fixed frame 6-2-4 is provided, and several fixed frames 6-2-4 are provided, one to one, on the upper side of the movable block 6-1. The front and rear sides of the fixed frame 6-2-4 are welded and fixed to the inner walls of the front and rear sides of the mounting base 1. The upper end of the rotating rod 6-5 is movably inserted into the fixed frame 6-2-4. A guide plate 9 is welded and fixed to the top wall of the fixed frame 6-2-4. The guide plate 9 has a tapered cross-section, and both sides of the lower side wall of the guide plate 9 are set in the same plane as the two sides of the fixed frame 6-2-4 to prevent dust from accumulating on the top wall of the fixed frame 6-2-4.
[0053] Linkage gear 6-2-5, there are several linkage gears 6-2-5, and they are fitted and welded to one end of the rotating rod 6-5 inside the fixed frame 6-2-4. The linkage gear 6-2-5 is meshed with the teeth on one side of the inner wall of the fixed frame 6-2-4.
[0054] Example 4:
[0055] See Figure 1-2 As shown, based on Embodiment 1, the lubrication mechanism 7 includes:
[0056] The collar 7-1 consists of several collars, which are symmetrically and movablely fitted in pairs at the front and rear ends of the roller 2. The collar 7-1 is welded and fixed to the vertical plate of the mounting base 1. The collar 7-1 has a hollow internal structure, and several liquid outlets are opened at equal angles on the inner ring wall of the collar 7-1.
[0057] There are two No. 1 diversion pipes 7-2, which are respectively embedded in the vertical plates on the front and rear sides of the mounting base 1. Several conveying pipes 7-3 are equally spaced through each No. 1 diversion pipe 7-2, and the conveying pipes 7-3 are inserted into the outer ring wall of the collar 7-1 in a one-to-one correspondence.
[0058] The second diversion pipe 7-4 is embedded in the horizontal plate of the mounting base 1. One end of the second diversion pipe 7-4 passes through one side of the mounting base 1 and is connected to the external lubricating oil through an external pump. Both the front and rear ends of the outer ring wall of the second diversion pipe 7-4 are connected to the connecting pipe 7-5. The upper end of the connecting pipe 7-5 is connected to the first diversion pipe 7-2.
[0059] When using this invention, the tractor travels on several rollers 2. During use, the drive motor 4 is started, which drives the connected support wheel 3 to rotate. The support wheel 3 drives the roller 2 on its upper side to rotate. Simultaneously, two opposing support wheels 3 rotate synchronously in opposite directions, causing several rollers 2 to rotate. The support wheels 3 also support the rollers 2, thus improving the stability of the rollers 2. During use, the reciprocating motor 6-2-3 is started, which drives the connected reciprocating lead screw 6-2-1 to rotate. This reciprocating lead screw 6-2-1 rotates synchronously through the cooperation of several synchronous gear transmission components. The reciprocating lead screw 6-2-1 then drives the moving block 6-1 to move, which in turn drives the cleaning brush plate 6-4 to move. When the moving block 6-1 moves, the linkage gear 6-2-5 on the rotating rod 6-5 meshes with the teeth on the fixed frame 6-2-4, thus causing the linkage gear 6-2-5 to rotate. The linkage gear 6-2-5 drives the rotating rod 6-5 to rotate, and the rotating rod 6-5 drives the rotating shaft 6-3 to rotate through the bevel gear pair. The rotating shaft 6-3 drives the cleaning brushes 6-4 on both sides to rotate, thereby cleaning the roller 2 through the cleaning brushes 6-4. The external pump is started periodically to pump the lubricating oil into the second diversion pipe 7-4, and then through the connecting pipe 7-5, the first diversion pipe 7-2 and the delivery pipe 7-3 to the collar 7-1. Finally, after passing through the liquid outlet, it is applied to the roller 2, thereby improving the lubrication effect and reducing wear.
[0060] Compared with the prior art, the beneficial effects of this specific embodiment are as follows:
[0061] 1. By setting up a cleaning mechanism 6, including components such as a moving block 6-1, a rotating shaft 6-3, a cleaning brush 6-4, and a rotating rod 6-5, automatic cleaning of the roller 2 can be achieved;
[0062] 2. The reciprocating mechanism 6-2 drives the moving block 6-1 to move back and forth. At the same time, the rotating rod 6-5 drives the rotating shaft 6-3 to rotate through the bevel gear pair, so that the cleaning brush plate 6-4 rotates while moving, thereby effectively removing dirt and impurities from the surface of the roller 2 and keeping the roller 2 clean and operating normally.
[0063] 3. The lubrication mechanism 7, through components such as collar 7-1, first diversion pipe 7-2, second diversion pipe 7-4 and conveying pipe 7-3, can periodically and evenly apply lubricating oil to both ends of the roller 2, which not only improves the lubrication effect, but also reduces the wear of the roller 2, extends the service life of the equipment, and reduces maintenance costs.
[0064] 4. The reciprocating mechanism 6-2 adopts a design including a reciprocating lead screw 6-2-1, a synchronous pulley transmission assembly, and a reciprocating motor 6-2-3, which enables the synchronous reciprocating motion of multiple moving blocks 6-1. This design ensures a uniform cleaning effect of the cleaning brush 6-4, avoids cleaning dead spots or over-cleaning caused by asynchrony, and improves the overall operating efficiency of the equipment;
[0065] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A wear-reducing roller assembly for a tractor test conveyor line, comprising a mounting base (1) and rollers (2), wherein the mounting base (1) is U-shaped, and a plurality of rollers (2) are equidistantly screwed onto the interior of the mounting base (1) via bearings; characterized in that: It also includes: Support wheels (3), there are several support wheels (3), and they are arranged in pairs symmetrically and abutting against each other on the lower side of the roller (2). The front and rear ends of the support wheels (3) are respectively screwed into the vertical plates on the front and rear sides of the mounting base (1) through bearings. The two support wheels (3) on the adjacent side of the two adjacent groups are abutting against each other. The drive motor (4) is embedded and fixed in one side wall of the mounting base (1). The drive motor (4) is connected to one end of one of the support wheels (3). A door panel (5) is provided on the front side of the drive motor (4). The door panel (5) is embedded in the front side wall of the mounting base (1). One side of the door panel (5) is screwed to the mounting base (1) by a hinge. The cleaning mechanism (6) is installed in the mounting base (1) and is configured in conjunction with several rollers (2); The lubrication mechanism (7) is located inside the mounting base (1) and is configured to cooperate with both ends of the roller (2).
2. The wear-reducing roller assembly for a tractor experimental conveyor line according to claim 1, characterized in that: The cleaning mechanism (6) includes: The movable block (6-1) consists of several blocks, each of which is disposed on the lower side between two adjacent rollers (2). The movable block (6-1) is connected to the mounting base (1) via a reciprocating mechanism (6-2). Rotating shaft (6-3), there are several rotating shafts (6-3), and they are screwed into the moving block (6-1) one by one through bearings. After the two ends of the rotating shaft (6-3) pass through the two side walls of the moving block (6-1), a cleaning brush plate (6-4) is fixed thereon. The cleaning brush plate (6-4) is set to cooperate with the adjacent roller (2) to abut against each other. Rotating rod (6-5), there are several rotating rods (6-5), and they are screwed into the moving block (6-1) one by one through bearings. The lower end of the rotating rod (6-5) is connected to the middle end of the rotating shaft (6-3) through a bevel gear pair, and the upper end of the rotating rod (6-5) is connected to the reciprocating mechanism (6-2).
3. A wear-reducing roller assembly for a tractor experimental conveyor line according to claim 2, characterized in that: The movable block (6-1) has annular slide rails (8) fixed on both sides of its side walls. The annular slide rails (8) are slidably arranged in the annular grooves on the side walls of the adjacent cleaning brush plate (6-4).
4. A wear-reducing roller assembly for a tractor experimental conveyor line according to claim 2, characterized in that: The reciprocating mechanism (6-2) includes: A reciprocating lead screw (6-2-1) is provided. There are several reciprocating lead screws (6-2-1), and they are screwed into the moving block (6-1) one by one. The front and rear ends of the reciprocating lead screws (6-2-1) are screwed onto the mounting base (1) through bearings. The several reciprocating lead screws (6-2-1) are connected in pairs through a synchronous wheel transmission assembly. The upper side of the moving block (6-1) is symmetrically provided with guide rods (6-2-2). The front and rear ends of the guide rods (6-2-2) are fixed on the front and rear inner walls of the mounting base (1) respectively. A reciprocating motor (6-2-3) is embedded and fixed in one side wall of the mounting base (1), and the output shaft of the reciprocating motor (6-2-3) is connected to one of the reciprocating lead screws (6-2-1); The fixed frame (6-2-4) consists of several fixed frames, which are arranged one-to-one on the upper side of the movable block (6-1). The front and rear sides of the fixed frame (6-2-4) are fixedly connected to the inner walls of the front and rear sides of the mounting base (1). The upper end of the rotating rod (6-5) is movably inserted into the fixed frame (6-2-4). The linkage gear (6-2-5) consists of several gears, which are fitted and fixed one by one on one end of the rotating rod (6-5) inside the fixed frame (6-2-4). The linkage gear (6-2-5) meshes with the teeth on one side of the inner wall of the fixed frame (6-2-4).
5. A wear-reducing roller assembly for a tractor experimental conveyor line according to claim 4, characterized in that: A guide plate (9) is fixed on the top wall of the fixed frame (6-2-4). The cross-section of the guide plate (9) is tapered. Both sides of the lower side wall of the guide plate (9) are set in the same plane as the two sides of the fixed frame (6-2-4).
6. A tractor test conveyor roller assembly for reduced wear according to claim 1, characterized in that: The lubrication mechanism (7) includes: The collar (7-1) consists of several collars, which are symmetrically and movablely mounted on the front and rear ends of the roller (2) in pairs. The collar (7-1) is fixedly connected to the vertical plate of the mounting base (1). The collar (7-1) has a hollow structure inside, and several liquid outlets are provided at equal angles on the inner ring wall of the collar (7-1). Two No. 1 diversion pipes (7-2) are installed in the vertical plates on the front and rear sides of the mounting base (1). Several conveying pipes (7-3) are equally spaced through each No. 1 diversion pipe (7-2). The conveying pipes (7-3) are inserted one by one through the outer ring wall of the collar (7-1). The second diversion pipe (7-4) is embedded in the horizontal plate of the mounting base (1). One end of the second diversion pipe (7-4) passes through one side of the mounting base (1) and is connected to the external lubricating oil through an external pump. Both the front and rear ends of the outer ring wall of the second diversion pipe (7-4) are connected by connecting pipes (7-5). The upper end of the connecting pipe (7-5) is connected to the first diversion pipe (7-2).