A shipborne fire truck chassis and leaf spring assembly

Abstract

The present invention relates to a shipborne fire truck chassis and leaf spring assembly, wherein the leaf spring assembly includes a leaf spring suspension and a wheel seat installed below the leaf spring suspension, wherein the leaf spring suspension includes a front and rear paired leaf spring mounting seat and a leaf spring installed between the two leaf spring mounting seats, wherein the leaf spring mounting seat includes a connecting seat for fixed connection with a vehicle frame and a left and right paired leaf spring pin support plate, wherein the end of the leaf spring extends between the paired leaf spring pin support plates, wherein the end of the leaf spring has a connecting hole, wherein the leaf spring is connected to the leaf spring mounting seat by a bolt passing through the leaf spring pin support plate and the connecting hole, wherein the bolt can be disassembled and installed on the leaf spring mounting seat in the axial direction. When the leaf spring needs to be repaired or overhauled, the leaf spring can be removed from the leaf spring assembly as a whole by simply removing the bolt, thereby effectively solving the problem that it is laborious and time-consuming to repair or overhaul the leaf spring assembly when the chassis space is narrow.

Description

Technical Field

[0001] The invention relates to the technical field of automobile chassis, and in particular to a chassis and a leaf spring assembly of a shipborne fire truck. Background Art

[0002] At present, the chassis design of transport vehicles is relatively mature. In the prior art, for example, a Chinese utility model patent with authorization announcement number CN218228797U and authorization announcement date 2023.01.06 discloses a semi-trailer-type mobile house. A detachable leaf spring suspension is connected to the bottom of the chassis in the utility model, and a wheel assembly is connected to the leaf spring suspension. The leaf spring suspension of the utility model has two groups, and both ends of the leaf spring suspension are fixedly connected to a first suspension connecting plate, and the bottom edges of the chassis are fixedly connected to a second suspension connecting plate, and the first suspension connecting plate and the second suspension connecting plate are connected by corresponding bolts. When disassembling the leaf spring suspension of the utility model, the bolts at the corresponding positions of the first suspension connecting plate and the second suspension connecting plate need to be removed to disassemble the leaf spring suspension.

[0003] However, for some special application requirements, such as the low chassis height of shipborne fire trucks, ground clearance requirements, and limited installation dimensions of chassis components, it is usually inconvenient to inspect or repair the leaf spring assembly of the chassis. For chassis with non-removable maintenance surfaces, repairing the leaf spring assembly will be very time-consuming and labor-intensive. Summary of the invention

[0004] The purpose of the present invention is to provide a shipborne fire truck chassis to solve the problem in the prior art that it is difficult to remove the leaf spring suspension when the installation dimensions of the chassis components are limited, the chassis height is low, and there are requirements for ground clearance. The purpose of the present invention is also to provide a leaf spring assembly to solve the above technical problems.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solutions.

[0006] A leaf spring assembly includes a leaf spring suspension and a wheel seat installed below the leaf spring suspension, the leaf spring suspension includes a front and rear pair of leaf spring mounting seats and a leaf spring installed between the two leaf spring mounting seats, the leaf spring mounting seat includes a connecting seat for fixed connection with a vehicle frame and a left and right pair of leaf spring pin support plates, the end of the leaf spring extends between the paired leaf spring pin support plates, the end of the leaf spring has a connecting hole, the leaf spring is connected to the leaf spring mounting seat by a bolt passing through the leaf spring pin support plate and the connecting hole, and the bolt can be disassembled and installed on the leaf spring mounting seat in the axial direction.

[0007] Furthermore, the leaf spring assembly also includes an articulated frame for fixedly connecting to the vehicle frame, the wheel seat and the articulated frame are articulated around an axis extending left and right, and the articulated axis is located at an eccentric position of the wheel seat.

[0008] Furthermore, the hinge axis between the wheel seat and the hinge frame is located at the front side or the rear side of the wheel seat.

[0009] Furthermore, the hinge axis between the wheel seat and the hinge frame is at the same horizontal height as the axis of the wheel seat.

[0010] Furthermore, the articulation axis between the wheel seat and the articulation frame can be detachably mounted on the articulation frame in the left-right direction.

[0011] The above technical solution has the following beneficial effects: the present invention pioneers a leaf spring assembly. When the leaf spring needs to be repaired or overhauled, only the bolt needs to be removed, and the leaf spring and the wheel seat can be detached from the frame as a whole, which effectively solves the problem of laborious and time-consuming repair or overhaul of the leaf spring assembly when the chassis space is narrow.

[0012] A shipborne fire truck chassis includes a leaf spring assembly, the leaf spring assembly includes a leaf spring suspension and a wheel seat installed below the leaf spring suspension, the leaf spring suspension includes a front and rear pair of leaf spring mounting seats and a leaf spring installed between the two leaf spring mounting seats, the leaf spring mounting seat includes a connecting seat for fixed connection with a frame and a left and right pair of leaf spring pin support plates, the end of the leaf spring extends between the paired leaf spring pin support plates, the end of the leaf spring has a connecting hole, the leaf spring is connected to the leaf spring mounting seat by a bolt passing through the leaf spring pin support plate and the connecting hole, and the bolt can be disassembled and installed on the leaf spring mounting seat in the axial direction.

[0013] Furthermore, the leaf spring assembly also includes an articulated frame for fixedly connecting to the vehicle frame, the wheel seat and the articulated frame are articulated around an axis extending left and right, and the articulated axis is located at an eccentric position of the wheel seat.

[0014] Furthermore, the hinge axis between the wheel seat and the hinge frame is located at the front side or the rear side of the wheel seat.

[0015] Furthermore, the hinge axis between the wheel seat and the hinge frame is at the same horizontal height as the axis of the wheel seat.

[0016] Furthermore, the articulation axis between the wheel seat and the articulation frame can be detachably mounted on the articulation frame in the left-right direction.

[0017] The above technical solution has the following beneficial effects: the present invention improves a shipborne fire truck chassis. When the leaf spring assembly of the shipborne fire truck chassis of the present invention is repaired or overhauled, it is only necessary to remove the pin, and the leaf spring and the wheel seat can be detached from the frame as a whole, which effectively solves the problem of laborious and time-consuming repair or overhaul of the leaf spring assembly when the chassis space is narrow. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a schematic diagram of an embodiment of a shipborne fire truck chassis.

[0019] Figure 2 The figure is a schematic diagram of a leaf spring assembly in an embodiment of a shipborne fire truck chassis.

[0020] Figure 3 It is a cross-sectional view of a leaf spring assembly in an embodiment of a shipborne fire truck chassis.

[0021] In the figure: 1. leaf spring assembly; 2. leaf spring mounting seat; 3. bolt; 4. leaf spring; 5. wheel seat; 6. reducer; 7. first frame of the articulated frame; 8. articulated shaft; 9. second frame of the articulated frame; 10. connecting seat; 11. driving motor; 12. frame; 13. R-shaped pin. DETAILED DESCRIPTION

[0022] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0023] The leaf spring assembly of the present invention is provided with a leaf spring mounting seat and a detachable bolt at the leaf spring suspension, so that the leaf spring is fixed in the leaf spring mounting seat, and the bolt passes through the holes at both ends of the leaf spring, so as to ensure that the front and rear relative positions of the leaf spring and the chassis will not change during driving. When the leaf spring assembly needs to be repaired or overhauled, only the bolt needs to be removed, and the leaf spring and the wheel seat can be completely detached from the frame, which effectively solves the problem that it is laborious and time-consuming to repair or overhaul the leaf spring assembly when the chassis space is narrow.

[0024] Based on the above concept, the present invention provides a variety of different embodiments of the shipborne fire truck chassis for illustration.

[0025] In a more basic embodiment, Figure 1 The shipborne fire truck chassis shown in the figure has a leaf spring assembly 1 installed at the wheel of the shipborne fire truck chassis and connected to the frame 12, as shown in FIG. Figure 2-3 As shown, the leaf spring assembly 1 includes a leaf spring suspension and a wheel seat 5 installed below the leaf spring suspension. The leaf spring suspension includes a front and rear paired leaf spring mounting seat 2 and a leaf spring 4 installed between the two leaf spring mounting seats. The leaf spring mounting seat includes a connecting seat 10 for fixed connection with the vehicle frame 12 and a left and right paired leaf spring pin support plate. The end of the leaf spring 4 extends between the paired leaf spring pin support plates. The end of the leaf spring 4 has a connecting hole. The leaf spring 4 is connected to the leaf spring mounting seat 2 through a bolt 3 passing through the leaf spring pin support plate and the connecting hole. The bolt 3 can be disassembled and installed in the leaf spring mounting seat 2 in the axial direction. When repairing or overhauling the leaf spring assembly, it is only necessary to remove the bolt 3 from the leaf spring mounting seat 2, and the leaf spring 4 can be removed from the leaf spring assembly 1 as a whole, making it more time-saving and labor-saving to repair or overhaul the leaf spring assembly.

[0026] Based on the above embodiment, the detachable bolt 3 can be a bolt with a nut at one end. In a preferred embodiment, Figure 2-3As shown, the bolt pin 3 is configured as a connecting pin, one end of which is a pin head, and the other end is provided with a hole for connecting and cooperating with the R-shaped pin 13. The R-shaped pin 13 is inserted into the hole of the connecting pin to fix the connecting pin. When the leaf spring assembly needs to be repaired, only the R-shaped pin 13 needs to be pulled out, and then the connecting pin can be pulled out, which can further shorten the maintenance time.

[0027] On the basis of the above embodiment, in one embodiment, the wheel seat 5 includes a reducer 6 and a drive motor 11. After the connecting seat 10 is removed from the frame 12, the leaf spring 4 and the wheel seat 5 are completely detached from the frame 12. In a preferred embodiment, as Figure 2-3 As shown, the leaf spring assembly 1 also includes an articulated frame for being fixedly connected to the frame 12, the articulated frame includes a first articulated frame body 7 and a second articulated frame body 9 which are arranged at intervals on the left and right, the leaf spring suspension is located between the first articulated frame body 7 and the second articulated frame body 9, the wheel seat 5 is articulatedly connected to the articulated frame around an axis extending left and right, and the articulation axis is at an eccentric position of the wheel seat, after the connecting seat 10 is removed from the frame 12, the leaf spring 4 and the wheel seat 5 can be rotated as a whole around the articulation axis, so as to fall to the ground, which further facilitates the maintenance or overhaul of the leaf spring assembly 1, and after the maintenance or overhaul is completed, it is also convenient to connect the leaf spring assembly 1 to the frame 12, and the wheel seat 5 and the articulation shaft 8 of the articulated frame can be disassembled and installed on the articulated frame in the left and right directions.

[0028] On the basis of the above embodiment, the hinge axis of the wheel seat 5 and the hinge frame can be located at the front side of the wheel seat 5. In another embodiment, as Figure 2-3 As shown, the articulation axis between the wheel seat 5 and the articulated frame is located at the rear side of the wheel seat 5 to reduce the interference of the articulated frame on the wheel during driving.

[0029] On the basis of the above embodiment, the hinge axis between the wheel seat and the hinge frame is located above or below the rear side of the wheel seat 5. When it is located above the rear side, the angle of rotation of the leaf spring assembly 1 around the hinge axis is too small. When it is located below the rear side, the hinge frame will cause certain interference to the wheel. In a preferred embodiment, Figure 2-3 As shown, the hinge axis of the wheel seat and the hinge frame is at the same horizontal height as the rear side of the wheel seat 5 and the axis of the wheel seat, which not only ensures the rotation angle but also reduces the interference of the hinge frame on the wheel.

[0030] The specific structure of the leaf spring assembly of the embodiment of the present invention is the same as the leaf spring assembly structure in the above embodiment of the shipborne fire truck chassis, and will not be further described herein.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. A leaf spring assembly, characterized in that: It includes a leaf spring suspension and a wheel seat installed below the leaf spring suspension, the leaf spring suspension includes a front and rear pair of leaf spring mounting seats and a leaf spring installed between the two leaf spring mounting seats, the leaf spring mounting seat includes a connecting seat for fixed connection with the frame and a left and right pair of leaf spring pin support plates, the end of the leaf spring extends between the paired leaf spring pin support plates, the end of the leaf spring has a connecting hole, the leaf spring is connected to the leaf spring mounting seat by a bolt passing through the leaf spring pin support plate and the connecting hole, and the bolt can be disassembled and installed on the leaf spring mounting seat in the axial direction.

2. The leaf spring assembly according to claim 1, characterized in that The leaf spring assembly also includes an articulated frame for fixedly connecting with the vehicle frame, the wheel seat is articulated with the articulated frame around an axis extending left and right, and the articulated axis is located at an eccentric position of the wheel seat.

3. The leaf spring assembly according to claim 2, characterized in that: The hinge axis between the wheel seat and the hinge frame is located at the front side or the rear side of the wheel seat.

4. The leaf spring assembly according to claim 3, characterized in that The hinge axis of the wheel seat and the hinge frame is at the same horizontal height as the axis of the wheel seat.

5. The leaf spring assembly according to any one of claims 2 to 4, characterized in that: The articulation shaft of the wheel seat and the articulation frame can be detachably installed on the articulation frame in the left-right direction.

6. A shipborne fire truck chassis, comprising a leaf spring assembly, characterized in that: The leaf spring assembly includes a leaf spring suspension and a wheel seat installed below the leaf spring suspension, the leaf spring suspension includes a front and rear pair of leaf spring mounting seats and a leaf spring installed between the two leaf spring mounting seats, the leaf spring mounting seat includes a connecting seat for fixed connection with the frame and a left and right pair of leaf spring pin support plates, the end of the leaf spring extends between the paired leaf spring pin support plates, the end of the leaf spring has a connecting hole, the leaf spring is connected to the leaf spring mounting seat by a bolt passing through the leaf spring pin support plate and the connecting hole, and the bolt can be disassembled and installed on the leaf spring mounting seat in the axial direction.

7. The shipborne fire truck chassis according to claim 6, characterized in that: The leaf spring assembly also includes an articulated frame for fixedly connecting with the vehicle frame. The wheel seat is articulated with the articulated frame around an axis extending left and right, and the articulated axis is located at an eccentric position of the wheel seat.

8. The shipborne fire truck chassis according to claim 7, characterized in that: The hinge axis between the wheel seat and the hinge frame is located at the front side or the rear side of the wheel seat.

9. The shipborne fire truck chassis according to claim 8, characterized in that: The hinge axis of the wheel seat and the hinge frame is at the same horizontal height as the axis of the wheel seat.

10. The shipborne fire truck chassis according to any one of claims 7 to 9, characterized in that: The articulation shaft of the wheel seat and the articulation frame can be detachably installed on the articulation frame in the left-right direction.

Images