Novel stable disc type axle

Abstract

The utility model belongs to the technical field of axles, and particularly relates to a novel stable disc type axle which comprises a rear axle body, hubs and brake discs, the hubs are rotationally connected to the two ends of the rear axle body, the brake discs are installed on the surfaces of the hubs, steel plate springs are installed on the upper surface of the rear axle body and distributed symmetrically, and the brake discs are arranged on the rear axle body. Fixing hoops are installed on the surface of the steel plate spring, rotating seats are welded to the side walls of the fixing hoops, connecting rods are rotationally arranged in inner cavities of the rotating seats, adjusting lead screws are in threaded connection with the ends of the connecting rods, fisheye connecting shafts are rotationally connected with the ends of the adjusting lead screws, threaded holes are formed in inner cavities of the connecting rods, and the fisheye connecting shafts are connected with the fisheye connecting shafts. The adjusting lead screw is in threaded connection with the threaded hole, the surface of the adjusting lead screw is in threaded connection with a locking nut, and the locking nut abuts against the surface of the end of the connecting rod; the rear axle body can be fixed through matching of the connecting rods and the fisheye connecting shafts, and the stability of connection between the rear axle body and a carriage can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of axles, and particularly to a novel stable disc axle. Background Technique

[0002] In the road transportation industry, the extensive use of semi-trailers has played a certain role in promoting logistics. A semi-trailer is a heavy transportation vehicle connected to a semi-trailer head through a kingpin. It refers to a trailer in which the axle is placed behind the center of gravity of the vehicle when the vehicle is evenly loaded and is equipped with a coupling device that can transfer horizontal and vertical forces to the tractor. A semi-trailer is generally a three-axle semi-trailer, and its types include eleven-meter barn semi-trailers, thirteen-meter barns, low-bed semi-trailers, and many other types.

[0003] Currently, the invention patent with the publication number CN213501706U discloses a double-axle suspension for a semi-trailer, including a front support assembly, a middle support assembly, and a rear support assembly. Connecting leaf springs are fixedly installed on adjacent front support assemblies, middle support assemblies, and rear support assemblies. The two connecting leaf springs are fixedly connected through U-bolts and lock nuts. The bottom ends of the two connecting leaf springs are fixedly provided with leaf spring seats. One of the leaf spring seats is fixedly connected to the middle support assembly through an adjusting tie rod assembly, and the other leaf spring seat is fixedly connected to the front support assembly through an adjusting tie rod assembly. The beneficial effects of the utility model are: the arc-shaped buffer plate and the buffer assembly provided can reduce the load when the connecting leaf spring moves laterally; the wear-resistant plate provided improves the prevention of frequent lateral sliding between the connecting leaf spring and the side plate, which causes wear of the side plate. The grease injection hole provided can store lubricating grease to reduce the friction between the wear-resistant plate and the connecting leaf spring, and improves the service life.

[0004] The existing rear axle of a semi-trailer carriage is connected to the bottom beam of the carriage through both ends of a leaf spring. When the carriage is heavily loaded, the load on the connection between both ends of the leaf spring and the bottom beam of the carriage is relatively large. When the connection breaks, it is easy to cause the axle to fall off. To solve the above problems, a novel stable disc axle is proposed in this application. Content of the Utility Model

[0005] (I) Purpose of the Utility Model

[0006] To solve the technical problems in the background technique, the utility model proposes a novel stable disc axle. The rear axle body can be fixed by matching a connecting rod with a fish-eye connecting shaft, and the stability of the connection between the rear axle body and the carriage can be improved to solve the problems proposed in the background technique.

[0007] (II) Technical Solution

[0008] To solve the above technical problems, the present utility model provides a novel stable disc axle, including a rear axle body, wheels and brake discs. The wheels are rotatably connected to both ends of the rear axle body, and brake discs are installed on the surfaces of the wheels. A leaf spring is installed on the upper surface of the rear axle body, and the leaf springs are symmetrically distributed. A fixing hoop is installed on the surface of the leaf spring;

[0009] Rotating seats are welded to the side walls of the fixing hoop. A connecting rod is rotatably arranged in the inner cavity of the rotating seat, and an adjusting screw rod is threadedly connected to the end of the connecting rod;

[0010] The end of the adjusting screw rod is rotatably connected to a fish-eye connecting shaft.

[0011] Preferably, a threaded hole is formed in the inner cavity of the connecting rod, and the adjusting screw rod is threadedly connected to the threaded hole.

[0012] Preferably, a locking nut is threadedly connected to the surface of the adjusting screw rod, and the locking nut abuts against the surface of the end of the connecting rod.

[0013] Preferably, a support seat is welded to the upper surface of the rear axle body. The support seats are symmetrically arranged and are respectively located on one side of the leaf spring.

[0014] Preferably, an airbag is fixedly connected to the top of the support seat, and support discs are arranged at the top and bottom of the airbag.

[0015] Preferably, a spiral protective cover is sleeved on the surface of the airbag, and the top and bottom of the spiral protective cover are respectively connected to the support discs.

[0016] Preferably, connecting air nozzles are used on the top surface of the airbag. The connecting air nozzles are symmetrically distributed and are composed of an air inlet nozzle and an air outlet nozzle.

[0017] The above technical solution of the present utility model has the following beneficial technical effects:

[0018] 1. In the present utility model, the side wall of the fixing hoop is movably connected to the connecting rod through the rotating seat. The angle of the connecting rod can be adjusted through the rotating seat. The fish-eye connecting shaft is connected to the carriage beam. By rotating the adjusting screw rod, the adjusting screw rod is threadedly connected to the threaded hole on the surface of the connecting rod. Under the action of the surface thread, the adjusting screw rod can tighten the fish-eye connecting shaft and the connecting rod. The locking nut can lock the adjusting screw rod. The rear axle body can be fixed by matching the connecting rod with the fish-eye connecting shaft, and the stability of the connection between the rear axle body and the carriage can be improved.

[0019] 2. In the present utility model, the spiral protective cover is sleeved on the surface of the airbag. The spiral protective cover can be stretched or contracted following the inflation state of the airbag. The spiral protective cover can protect the airbag and can improve the service life of the airbag. Description of the Drawings

[0020] Figure 1 This is the overall structural schematic diagram of a new type of stable disc axle of the present utility model;

[0021] Figure 2 This is the structural schematic diagram of another perspective of a new type of stable disc axle of the present utility model;

[0022] Figure 3 This is the structural schematic diagram of the fixing hoop of a new type of stable disc axle of the present utility model;

[0023] Figure 4 This is the structural schematic diagram of the airbag installation of a new type of stable disc axle of the present utility model.

[0024] Reference numerals:

[0025] 1, rear axle body; 2, wheel hub; 3, brake disc; 4, leaf spring; 5, fixing hoop; 6, rotating seat; 7, connecting rod; 8, adjusting screw rod; 9, spherical eye connecting shaft; 10, locking nut; 11, support seat; 12, airbag; 13, spiral protective cover; 14, connecting air nozzle. Specific embodiments

[0026] To make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present utility model. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.

[0027] As Figures 1-4 shown, a new type of stable disc axle proposed by the present utility model includes a rear axle body 1, a wheel hub 2 and a brake disc 3. The wheel hub 2 is rotatably connected to both ends of the rear axle body 1. Brake discs 3 are installed on the surfaces of the wheel hubs 2. A leaf spring 4 is installed on the upper surface of the rear axle body 1. The leaf springs 4 are symmetrically distributed. A fixing hoop 5 is installed on the surface of the leaf spring 4;

[0028] Rotating seats 6 are welded to the side walls of the fixing hoop 5. A connecting rod 7 is rotatably arranged in the inner cavity of the rotating seat 6. An adjusting screw rod 8 is threadedly connected to the end of the connecting rod 7;

[0029] The end of the adjusting screw rod 8 is rotatably connected to a spherical eye connecting shaft 9. A threaded hole is formed in the inner cavity of the connecting rod 7. The adjusting screw rod 8 is threadedly connected to the threaded hole. A locking nut 10 is threadedly connected to the surface of the adjusting screw rod 8. The locking nut 10 abuts against the surface of the end of the connecting rod 7.

[0030] It should be noted that the two ends of the rear axle body 1 are used to install the wheels through the hubs 2. The leaf spring 4 is fixed on the rear axle body 1 through the fixing hoop 5. The two ends of the leaf spring 4 are fixed on the carriage beam through bolts. The leaf spring 4 can play a buffering role. The side wall of the fixing hoop 5 is movably connected with the connecting rod 7 through the rotating seat 6. The angle of the connecting rod 7 can be adjusted through the rotating seat 6. The fish-eye connecting shaft 9 is connected with the carriage beam. By rotating and adjusting the screw rod 8, the adjusting screw rod 8 is threadedly connected with the threaded hole on the surface of the connecting rod 7. Under the action of the surface thread, the adjusting screw rod 8 can tighten the fish-eye connecting shaft 9 and the connecting rod 7. The locking nut 10 can lock the adjusting screw rod 8. The rear axle body 1 can be fixed by matching the connecting rod 7 with the fish-eye connecting shaft 9, which can improve the stability of the connection between the rear axle body 1 and the carriage.

[0031] In this embodiment, as Figure 2 and Figure 4 shown, a support seat 11 is welded on the upper surface of the rear axle body 1. The support seats 11 are arranged symmetrically and are respectively located on one side of the leaf spring 4.

[0032] It should be noted that the support seat 11 can support and fix the airbag 12.

[0033] In this embodiment, as Figure 2 and Figure 4 shown, an airbag 12 is fixedly connected to the top of the support seat 11. Support plates are provided at both the top and the bottom of the airbag 12. A spiral protective cover 13 is sleeved on the surface of the airbag 12. The top and the bottom of the spiral protective cover 13 are respectively connected to the support plates.

[0034] It should be noted that the airbag 12 can fix both ends of the spiral protective cover 13 through the support plates. The spiral protective cover 13 can be stretched or contracted following the inflation state of the airbag 12. The spiral protective cover 13 can protect the airbag 12 and can extend the service life of the airbag 12.

[0035] In this embodiment, as Figure 4 shown, connection nozzles 14 are used on the top surface of the airbag 12. The connection nozzles 14 are symmetrically distributed. The connection nozzle 14 is composed of an air inlet nozzle and an air outlet nozzle.

[0036] It should be noted that the connection nozzle 14 is composed of an air inlet nozzle and an air outlet nozzle, and can be used to inflate and deflate the airbag 12.

[0037] Working principle and usage process of the utility model: Wheels are installed at both ends of the rear axle body 1 through the hubs 2. The leaf spring 4 is fixed on the rear axle body 1 through the fixing hoop 5. Both ends of the leaf spring 4 are fixed on the carriage girder through bolts. The leaf spring 4 can play a buffering role. The side wall of the fixing hoop 5 is movably connected with the connecting rod 7 through the rotating seat 6. The angle of the connecting rod 7 can be adjusted through the rotating seat 6. The fish-eye connecting shaft 9 is connected with the carriage girder. By rotating and adjusting the screw rod 8, the adjusting screw rod 8 is threadedly connected with the threaded hole on the surface of the connecting rod 7. Under the action of the surface thread, the adjusting screw rod 8 can tighten the fish-eye connecting shaft 9 and the connecting rod 7. The locking nut 10 can lock the adjusting screw rod 8. The rear axle body 1 can be fixed by matching the connecting rod 7 with the fish-eye connecting shaft 9, which can improve the stability of the connection between the rear axle body 1 and the carriage. The airbag 12 can be inflated through the inflation nozzle in the connection air nozzle 14. After the airbag 12 expands, it can lift the carriage. The airbag 12 can also play a supporting role for the carriage, which can reduce the pressure on the leaf spring 4 when the carriage is heavily loaded. The spiral protective cover 13 is sleeved on the surface of the airbag 12. The spiral protective cover 13 can be stretched or contracted following the inflation state of the airbag 12. The spiral protective cover 13 can play a protective role for the airbag 12 and can improve the service life of the airbag 12.

[0038] It should be understood that the above specific embodiments of the utility model are only used for exemplary illustration or explanation of the principle of the utility model, and do not constitute a limitation to the utility model. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the utility model shall be included within the protection scope of the utility model. In addition, the appended claims of the utility model are intended to cover all changes and modification examples falling within the scope and boundary of the appended claims or equivalent forms of such scope and boundary.

Claims

1. A novel stable disc-type vehicle axle, comprising a rear axle body (1), a wheel hub (2) and a brake disc (3), wherein the wheel hub (2) is rotatably connected to both ends of the rear axle body (1), and the surface of the wheel hub (2) is provided with a brake disc (3), characterized in that: A leaf spring (4) is installed on the upper surface of the rear bridge body (1), the leaf springs (4) are symmetrically distributed, and a fixing hoop (5) is installed on the surface of the leaf spring (4); The side walls of the fixing hoop (5) are welded with a rotating seat (6), the inner cavity of the rotating seat (6) is rotatably provided with a connecting rod (7), and the end of the connecting rod (7) is threadedly connected with an adjusting screw rod (8); The end of the adjusting screw rod (8) is rotatably connected to a fisheye connecting shaft (9).

2. A novel stable disc axle according to claim 1, characterized in that: The inner cavity of the connecting rod (7) is provided with a threaded hole, and the adjusting screw rod (8) is threadably connected to the threaded hole.

3. A novel stable disc axle according to claim 2, characterized in that: The surface of the adjusting screw rod (8) is threadedly connected with a locking nut (10), and the locking nut (10) abuts against the end surface of the connecting rod (7).

4. A novel stable disc axle according to claim 3, characterized in that: A support seat (11) is welded on the upper surface of the rear bridge body (1), the support seat (11) is symmetrically arranged, and the support seat (11) is respectively located on one side of the leaf spring (4).

5. A novel stable disc axle according to claim 4, characterized in that: The top of the support seat (11) is fixedly connected to an air bag (12), and the top and bottom of the air bag (12) are both provided with support plates.

6. A novel stable disc axle according to claim 5, characterized in that: The surface of the airbag (12) is covered with a spiral protective cover (13), and the top and bottom of the spiral protective cover (13) are respectively connected to the support plate.

7. A novel stable disc axle according to claim 6, characterized in that: The top surface of the air bag (12) uses a connecting air nozzle (14), the connecting air nozzle (14) is symmetrically distributed, and the connecting air nozzle (14) is composed of an air inlet nozzle and an air outlet nozzle.

Images