High-strength trailer axle

Abstract

The utility model relates to the technical field of trailer axles, in particular to a high-strength trailer axle which comprises an axle rod, hubs are arranged on the left side and the right side of the axle rod, bearings are installed in the hubs, connecting shafts are connected to the middles of the hubs on the left side and the right side in an inserted mode, and inserting grooves are formed in the left side and the right side of the axle rod. The close ends of the connecting shafts on the left side and the right side are inserted into the inner wall of the inserting groove and attached to the inner wall of the inserting groove, two positioning grooves are formed in the inner wall of the inserting groove, and two positioning rods are installed at the close ends of the connecting shafts on the left side and the right side. The axle has the advantages that the connecting shaft is inserted into the inner wall of the inserting groove, the positioning rod is inserted into the inner wall of the positioning groove, the contact area between the connecting shaft and the axle rod can be increased, the strength of the axle can be improved, the positioning rod and the axle rod are fixed through the bolt, and therefore the connecting shaft on a certain side can be conveniently and independently detached; therefore, follow-up maintenance is facilitated, and meanwhile the maintenance cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of trailer axles, in particular to a high-strength trailer axle. Background Art

[0002] Trailer axles play a crucial role in vehicle design and use. They not only bear the weight of the vehicle but also affect the driving stability and safety of the vehicle. The basic function of an axle is to connect each group of parallel wheels so that they can rotate synchronously, thereby driving the vehicle forward or keeping the vehicle driving stably.

[0003] In the prior art, for a traditional axle, its axle rod is relatively fixed. When it is necessary to repair a hub on one side, usually the entire axle needs to be disassembled, which not only increases the complexity of the repair work but also prolongs the repair time and affects the normal use of the vehicle. At the same time, since the axle rod itself cannot be disassembled separately, during use, the strength and durability of the axle rod often need to be considered as a whole. However, once the axle rod is damaged or worn, the entire axle needs to be replaced, which undoubtedly increases the maintenance cost.

[0004] Therefore, a high-strength trailer axle is needed to solve the problem that for the existing trailer axle, its axle rod is relatively fixed and the entire axle needs to be disassembled during maintenance, increasing the maintenance cost. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a high-strength trailer axle to solve the problems put forward in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a high-strength trailer axle,

[0007] including an axle rod, hubs are arranged on both the left and right sides of the axle rod, bearings are installed inside the hubs, connecting shafts are inserted in the middle parts of the hubs on both the left and right sides, slots are opened on both the left and right sides of the axle rod, and the adjacent ends of the connecting shafts on both the left and right sides are inserted into the inner walls of the slots and are in contact with the inner walls of the slots.

[0008] Preferably, two positioning grooves are opened on the inner walls of the slots, two positioning rods are installed at the adjacent ends of the connecting shafts on both the left and right sides, threaded grooves are opened on the opposite sides of the upper and lower positioning rods, and two bolts are inserted into both the left and right sides of the axle rod.

[0009] Preferably, the bolts penetrate through the positioning grooves, and the adjacent ends of the upper and lower bolts are threadedly connected to the inner walls of the threaded grooves, and the adjacent ends of the positioning rods on both the left and right sides are inserted into the inner walls of the positioning grooves.

[0010] Preferably, a sponge block is installed on the inner wall of the slot. Oil storage grooves are formed on both the left and right sides inside the shaft rod. An oil inlet pipe is installed above the oil storage groove, and an oil outlet hole is formed at the bottom of the oil storage groove. The separated sides of the left and right oil outlet holes are in contact with the sponge block respectively, and the separated sides of the left and right sponge blocks are in contact with the connecting shaft respectively.

[0011] Preferably, sliding grooves are formed on both the left and right sides at the bottom of the shaft rod. A moving plate is installed on the inner wall of the sliding groove. A plug rod is installed in the middle of the moving plate. An elastic member is sleeved on the outer side of the plug rod, and a piston is installed at the top of the plug rod.

[0012] Preferably, the piston is inserted into the inner wall of the oil outlet hole. One end of the elastic member is installed on the moving plate, and the other end is installed on the bottom wall of the sliding groove.

[0013] Preferably, the connecting shaft penetrates through the wheel hub and is installed between the outer side of the connecting shaft and the inner ring wall of the bearing.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] For the high-strength trailer axle proposed by the present utility model, by inserting the connecting shaft into the inner wall of the slot and inserting the positioning rod into the inner wall of the positioning groove, the contact area between the connecting shaft and the shaft rod can be increased. This can not only improve the strength of the axle, but also fix the positioning rod and the shaft rod with bolts, thus facilitating the separate disassembly of the connecting shaft on one side, facilitating subsequent maintenance, and reducing the maintenance cost at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional view of the present utility model;

[0017] Figure 2 is a schematic structural view of the positioning rod of the present utility model;

[0018] Figure 3 is a schematic structural view of the positioning groove of the present utility model;

[0019] Figure 4 is a schematic structural view of the connecting shaft of the present utility model;

[0020] Figure 5 is Figure 4 the structural sectional view at A-A in

[0021] Figure 6 is Figure 5 the enlarged view of the structure at B in

[0022] In the figure: 1, shaft rod; 2, wheel hub; 3, connecting shaft; 4, thread groove; 5, positioning rod; 6, slot;

[0023] 7. Positioning groove; 8. Sponge block; 9. Bolt; 10. Bearing; 11. Oil inlet pipe; 12. Oil storage tank;

[0024] 13. Oil outlet hole; 14. Moving plate; 15. Piston; 16. Slide groove; 17. Elastic part; 18. Insert rod. DETAILED DESCRIPTION

[0025] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1: Please refer to Figures 1-6 The utility model provides a technical solution: a high-strength trailer axle, including an axle rod 1, wheel hubs 2 are arranged on the left and right sides of the axle rod 1, bearings 10 are installed inside the wheel hubs 2, connecting shafts 3 are inserted in the middle of the left and right wheel hubs 2, slots 6 are opened on the left and right sides of the axle rod 1, and the proximal ends of the connecting shafts 3 on the left and right sides are inserted in the inner walls of the slots 6 and fit with the inner walls of the slots 6; the connecting shaft 3 passes through the wheel hub 2, and the outer side of the connecting shaft 3 is installed between the inner ring wall of the bearing 10, so as to utilize the bearing 10 to use the axle.

[0027] First, pull the wheel hub 2 that needs to be repaired, and drive the connecting shaft 3 to disengage from the inner wall of the slot 6. At this time, the wheel hub 2 can be repaired, and the connecting shaft 3 can be maintained conveniently. After completion, reset it, and at the same time, allow one end of the connecting shaft 3 to be inserted into the inner wall of the slot 6 and fit between the slot 6, thereby increasing the contact area between the connecting shaft 3 and the shaft rod 1, thereby facilitating maintenance while also improving the overall stiffness of the axle, thereby improving the use effect of the trailer axle.

[0028] Embodiment 2: On the basis of Embodiment 1, in order to facilitate the installation of two connecting shafts 3 so as to subsequently detach a wheel hub 2 on one side separately, two positioning grooves 7 are provided on the inner wall of the slot 6. Two positioning rods 5 are installed at the adjacent ends of the connecting shafts 3 on the left and right sides. Thread grooves 4 are provided on the separated sides of the upper and lower positioning rods 5. Two bolts 9 are inserted on the left and right sides of the shaft rod 1; the bolts 9 penetrate through the positioning grooves 7, and the adjacent ends of the upper and lower bolts 9 are threadedly connected to the inner wall of the thread grooves 4. Thus, the positioning rod 5 and the shaft rod 1 are installed together by using the bolts 9, which facilitates the subsequent separate detachment of a wheel hub 2 on one side. The adjacent ends of the positioning rods 5 on the left and right sides are inserted into the inner wall of the positioning grooves 7, which facilitates the installation of the connecting shafts 3. And through the positioning rods 5, the contact area between the connecting shafts 3 and the shaft rod 1 is increased, thereby improving the installation firmness between the connecting shafts 3 and the shaft rod 1, and further enhancing the strength of the entire axle.

[0029] First, unscrew the bolts 9 on the upper and lower sides of the shaft rod 1. Then, pull the wheel hub 2 to be repaired, drive the connecting shaft 3 to disengage from the inner wall of the slot 6, and at the same time drive the positioning rod 5 to disengage from the inner wall of the positioning groove 7. At this time, the wheel hub 2 can be repaired, and at the same time, it is convenient to maintain the connecting shaft 3. After completion, reset it, drive the positioning rod 5 to be inserted into the inner wall of the positioning groove 7, and at the same time make one end of the connecting shaft 3 be inserted into the inner wall of the slot 6 and fit with the slot 6, thereby increasing the contact area of the connection between the connecting shaft 3 and the shaft rod 1. And use the bolts 9 to install the positioning rod 5 and the shaft rod 1 together. Thus, while facilitating maintenance, the overall rigidity of the axle can also be improved to enhance the use effect of the trailer axle.

[0030] Embodiment 3: On the basis of Embodiment 2, in order to coat the outer side of the connecting shaft 3 with lubricant to facilitate the installation of the connecting shaft 3, sponge blocks 8 are installed on the inner wall of the slot 6. Oil storage grooves 12 are provided on the left and right sides inside the shaft rod 1. An oil inlet pipe 11 is installed on the upper side of the oil storage groove 12, and a sealing cover is installed at the top of the oil inlet pipe 11 to prevent oil leakage during use. Oil outlet holes 13 are provided at the bottom of the oil storage groove 12. The separated sides of the left and right oil outlet holes 13 are in contact with the sponge blocks 8, and the separated sides of the left and right sponge blocks 8 are in contact with the connecting shaft 3.

[0031] When it is necessary to increase the lubricity between the connecting shaft 3 and the shaft rod 1, first, the lubricant in the oil storage groove 12 will flow to the surface of the sponge block 8 through the oil outlet holes 13 and be adsorbed by the sponge block 8. Thus, the lubricant is adhered to the surface of the connecting shaft 3 by using the sponge block 8, thereby improving the lubricity of the installation between the connecting shaft 3 and the shaft rod 1. At the same time, when it is necessary to replenish the lubricant in the oil storage groove 12, it can be replenished through the oil inlet pipe 11.

[0032] Embodiment 4: On the basis of Embodiment 3, in order to facilitate the sponge block 8 to adsorb the lubricant for coating on one side of the connecting shaft 3, sliding grooves 16 are opened on both the left and right sides at the bottom of the shaft rod 1. A moving plate 14 is installed on the inner wall of the sliding groove 16. The moving plate 14 plays a limiting role to prevent the insertion rod 18 from detaching from the shaft rod 1. An insertion rod 18 is installed in the middle of the moving plate 14. An elastic member 17 is sleeved on the outer side of the insertion rod 18. A piston 15 is installed at the top of the insertion rod 18. The stroke of the piston 15 is the same as that of the moving plate 14 at its bottom. When the moving plate 14 moves to the maximum stroke on the inner wall of the sliding groove 16, the top of the piston 15 will be horizontally aligned with the corner of the oil outlet hole 13 at this time. Thus, while enabling the oil in the oil storage tank 12 to flow smoothly, it can also prevent the oil from leaking out through the sliding groove 16; the piston 15 is inserted into the inner wall of the oil outlet hole 13. One end of the elastic member 17 is installed with the moving plate 14, and the other end is installed with the bottom wall of the sliding groove 16. Thus, by using the elastic force of the elastic member 17, it is convenient to drive the piston 15 to reset for subsequent use when increasing the lubricity. When it is necessary to increase the lubricity between the connecting shaft 3 and the shaft rod 1, pull the insertion rod 18 downward, simultaneously drive the moving plate 14 to slide along the inner wall of the sliding groove 16, and squeeze the elastic member 17. At this time, the piston 15 will gradually move downward, and keep the oil outlet hole 13 unblocked. At this time, the lubricant inside the oil storage tank 12 will flow through the oil outlet hole 13 to the surface of the sponge block 8 and be adsorbed by the sponge block 8. Thus, the sponge block 8 is used to adhere the lubricant to the surface of the connecting shaft 3, thereby improving the lubricity of the installation between the connecting shaft 3 and the shaft rod 1. After the oiling is completed, release the insertion rod 18, and use the elastic force of the elastic member 17 itself to reset, and drive the piston 15 to continue to be inserted into the inner wall of the oil outlet hole 13, thereby blocking the oil outlet hole 13 for subsequent use when oiling.

[0033] During actual use, first unscrew the bolts 9 on the upper and lower sides of the shaft rod 1, then pull the hub 2 to be repaired, drive the connecting shaft 3 to disengage from the inner wall of the slot 6, and at the same time drive the positioning rod 5 to disengage from the inner wall of the positioning slot 7. At this time, the hub 2 can be repaired, and at the same time it is convenient to maintain the connecting shaft 3. After completion, reset it, drive the positioning rod 5 to be inserted into the inner wall of the positioning slot 7, and at the same time insert one end of the connecting shaft 3 into the inner wall of the slot 6 and fit it with the slot 6, thereby increasing the contact area between the connection of the connecting shaft 3 and the shaft rod 1, and using the bolt 9 to install the positioning rod 5 and the shaft rod 1 together. Thus, while facilitating maintenance, it can also improve the overall stiffness of the axle to improve the use effect of the trailer axle;

[0034] When it is necessary to increase the lubricity between the connecting shaft 3 and the shaft rod 1, pull the insertion rod 18 downward, which will drive the moving plate 14 to slide along the inner wall of the sliding groove 16 and compress the elastic member 17. At this time, the piston 15 will gradually move downward, and keep the oil outlet hole 13 unblocked. At this time, the lubricant in the oil storage tank 12 will flow through the oil outlet hole 13 to the surface of the sponge block 8 and be adsorbed by the sponge block 8. Thus, the sponge block 8 is used to adhere the lubricant to the surface of the connecting shaft 3, thereby improving the lubricity of the installation between the connecting shaft 3 and the shaft rod 1. After the oiling is completed, release the insertion rod 18, and the elastic member 17 will reset by its own elastic force, and drive the piston 15 to continue to plug into the inner wall of the oil outlet hole 13, thereby blocking the oil outlet hole 13 for subsequent oiling use.

[0035] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength trailer axle, comprising an axle rod (1), wherein a wheel hub (2) is arranged on both the left and right sides of the axle rod (1), and a bearing (10) is installed inside the wheel hub (2), characterized in that: A connecting shaft (3) is inserted in the middle of the wheel hub (2) on the left and right sides, and a slot (6) is opened on the left and right sides of the shaft rod (1). The adjacent ends of the connecting shaft (3) on the left and right sides are inserted in the inner wall of the slot (6) and fit in the inner wall of the slot (6).

2. A high-strength trailer axle according to claim 1, characterized in that: The inner wall of the slot (6) is provided with two positioning grooves (7), the proximal ends of the left and right connecting shafts (3) are both provided with two positioning rods (5), the separated sides of the upper and lower positioning rods (5) are both provided with threaded grooves (4), and the left and right sides of the shaft rod (1) are both provided with two bolts (9).

3. A high-strength trailer axle according to claim 2, characterized in that: The bolt (9) passes through the positioning groove (7), and the proximal ends of the bolts (9) on the upper and lower sides are threadedly connected to the inner wall of the threaded groove (4), and the proximal ends of the positioning rods (5) on the left and right sides are inserted into the inner wall of the positioning groove (7).

4. The high-strength trailer axle according to claim 1, characterized in that: A sponge block (8) is installed on the inner wall of the slot (6); an oil storage tank (12) is provided on both the left and right sides of the interior of the shaft (1); an oil inlet pipe (11) is installed on the upper side of the oil storage tank (12); an oil outlet hole (13) is provided on the bottom of the oil storage tank (12); the separated sides of the oil outlet holes (13) on the left and right sides are in contact with the sponge block (8); and the separated sides of the sponge blocks (8) on the left and right sides are in contact with the connecting shaft (3).

5. The high-strength trailer axle according to claim 4, characterized in that: The bottom of the shaft (1) is provided with a slide groove (16) on both sides, a movable plate (14) is installed on the inner wall of the slide groove (16), an insertion rod (18) is installed in the middle of the movable plate (14), an elastic member (17) is sleeved on the outer side of the insertion rod (18), and a piston (15) is installed on the top of the insertion rod (18).

6. A high-strength trailer axle according to claim 5, characterized in that: The piston (15) is inserted into the inner wall of the oil outlet hole (13); one end of the elastic member (17) is installed between the movable plate (14), and the other end is installed between the bottom wall of the slide groove (16).

7. The high-strength trailer axle according to claim 1, characterized in that: The connecting shaft (3) passes through the wheel hub (2), and the outer side of the connecting shaft (3) is installed between the inner ring wall of the bearing (10).

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