Hydraulic oil cylinder fixing device of front jacking dump truck

Abstract

The utility model relates to a hydraulic oil cylinder fixing device of a front jacking dump truck, a cylinder seat of a hydraulic oil cylinder is hinged to a first support located on a truck body, two second supports installed on a truck hopper are respectively hinged to the left side and the right side of a driving rod of the hydraulic oil cylinder, and the hydraulic oil cylinder fixing device of the front jacking dump truck comprises a supporting structure, a connecting piece and an inhaul cable. The supporting structure is arranged on the rear side of the hydraulic oil cylinder so that the upper end of the hydraulic oil cylinder can incline backwards. The connecting piece is detachably connected to the two second brackets; the two ends of the inhaul cable are detachably connected to the connecting piece and the auxiliary frame assembly located on the rear side of the hydraulic oil cylinder respectively. The cushion block and the inhaul cable respectively form two confronting forces on the hydraulic oil cylinder to stably fix the hydraulic oil cylinder, so that the operation safety of a vehicle in the production and turnover process can be guaranteed, and the damage to a chassis cab or other chassis parts caused by forward inclination due to infirm fixation of the hydraulic oil cylinder is avoided. The safety in the production process is improved, the structure is simple, and the cost is low.

Description

Technical Field

[0001] This utility model relates to the field of dump truck technology, specifically to a hydraulic cylinder fixing device for a front-top dump truck. Background Technology

[0002] Traditional front-top dump trucks typically use a method of tilting the hydraulic cylinder backward to limit movement before the hydraulic cylinder is installed and before it is lowered into the truck bed. However, the hydraulic cylinder is not fixed in place. During vehicle production and turnover, the hydraulic cylinder is prone to tilting forward or becoming misaligned, which can cause damage to the chassis cab or other chassis components. Utility Model Content

[0003] Based on the above description, this utility model provides a hydraulic cylinder fixing device for a front-mounted dump truck to solve the problem that the existing hydraulic cylinder's limiting method in front of the installed but not yet lowered truck bed is unstable and easily damages the chassis cab or other chassis components.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0005] A hydraulic cylinder fixing device for a front-top dump truck, wherein the cylinder seat of the hydraulic cylinder is hinged to a first bracket located on the vehicle body, and two second brackets mounted on the truck bed are respectively hinged to the left and right sides of the drive rod of the hydraulic cylinder. The device is characterized in that it comprises:

[0006] A support structure is provided on the rear side of the hydraulic cylinder so that the upper end of the hydraulic cylinder tilts backward.

[0007] A connector, detachably connected to the two second brackets; and;

[0008] A cable, the two ends of which are detachably connected to the connector and the subframe assembly located behind the hydraulic cylinder.

[0009] Based on the above technical solution, the present invention can be further improved as follows:

[0010] Furthermore, the connector is configured as a connecting plate extending in the left-right direction, with both ends of the connecting plate connected to the two second brackets respectively.

[0011] Furthermore, the connecting plate includes:

[0012] A first plate is attached to the rear side of the two second brackets, and the first plate has a plurality of connecting holes spaced apart in a left-right direction, and...

[0013] The second plate is connected to the upper side of the first plate and is attached to the upper side of the two second brackets;

[0014] The cable includes a chain and at least two buckles, with the two ends of the chain passing through the connection hole and the mounting through hole of the subframe assembly, respectively, and each of the buckles is used to connect two links of the chain.

[0015] Furthermore, the front-mounted dump truck hydraulic cylinder fixing device also includes at least two mounting components, each mounting component including a bolt and a nut, each bolt passing through the through hole of each second bracket and the corresponding connecting hole and being screwed to the corresponding nut.

[0016] Furthermore, each of the mounting components also includes a washer and a gasket, the washer abutting against the nut, and the gasket being located between the washer and each of the second brackets.

[0017] Furthermore, the support structure is configured as a pad, which is installed on the rear side of the cylinder seat and near its lower end, or installed on the first bracket and near the rear side of the cylinder seat.

[0018] Furthermore, the cable is provided in two parts, which are distributed at intervals in the left and right direction and are respectively close to the two second supports.

[0019] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: The support structure is located on the rear side of the hydraulic cylinder, causing the hydraulic cylinder to tilt backward. The connector connects two second brackets, fixing the two brackets and the connector as a single unit. Then, the two ends of the cable connect the connector and the subframe assembly respectively. Thus, the pad and the cable exert two opposing forces on the hydraulic cylinder, stably fixing it in place. This ensures the safe operation of the vehicle during production and turnover, preventing damage to the chassis cab or other chassis components caused by an unstable hydraulic cylinder. Therefore, it improves safety during production, has a simple structure, and is low in cost. Attached Figure Description

[0020] Figure 1 A diagram illustrating the usage state of a hydraulic cylinder fixing device for a front-top dump truck, provided as an embodiment of this utility model;

[0021] Figure 2 for Figure 1 Enlarged view of point A in the middle section;

[0022] Figure 3 for Figure 1 Another structural diagram from a different perspective;

[0023] Figure 4 A schematic diagram of a pad supporting a hydraulic cylinder in a front-top dump truck hydraulic cylinder fixing device provided for an embodiment of this utility model;

[0024] Figure 5 for Figure 4 A magnified view of part B in the middle.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Support structure; 11. Pad block; 2. Connector; 21. Connecting plate; 211. First plate; 2111. Connecting hole; 212. Second plate; 3. Cable; 31. Chain; 32. Lock; 4. Mounting assembly; 41. Bolt; 42. Nut; 43. Washer; 44. Washer ring; a1. Cylinder seat; a2. Drive rod; b1. First bracket; b2. Second bracket; c. Subframe assembly. Detailed Implementation

[0027] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0029] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "above," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "below" of the other element or feature will be oriented "above" the other element or feature. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0030] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. In the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have the transmission of electrical signals or data between them.

[0031] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0032] Please refer to Figure 1 , Figure 3 and Figure 4 This utility model provides a hydraulic cylinder fixing device for a front-top dump truck. The cylinder seat a1 of the hydraulic cylinder is hinged to a first bracket b1 located on the vehicle body. The drive rod a2 of the hydraulic cylinder is hinged to two second brackets b2 installed on the truck bed on its left and right sides respectively. The hydraulic cylinder fixing device includes a support structure 1, a connecting piece 2, and a cable 3. The support structure 1 is located on the rear side of the hydraulic cylinder so that the upper end of the hydraulic cylinder is tilted backward. The connecting piece 2 is detachably connected to the two second brackets b2. The two ends of the cable 3 are detachably connected to the connecting piece 2 and the subframe assembly c located on the rear side of the hydraulic cylinder respectively.

[0033] The support structure 1 is located at the rear of the hydraulic cylinder, causing the hydraulic cylinder to tilt backward. The connector 2 connects the two second brackets b2, fixing the two brackets and the connector 2 together. Then, the two ends of the cable 3 are connected to the connector 2 and the subframe assembly c, respectively. Thus, the pad 11 and the cable 3 exert two opposing forces on the hydraulic cylinder, stabilizing and fixing it securely. This ensures the safe operation of the vehicle during production and turnover, preventing damage to the chassis cab or other chassis components caused by an unstable hydraulic cylinder and forward tilting. Furthermore, the connector 2 and the cable 3 are detachable, not affecting the subsequent installation of the truck bed or the connection between the two second brackets b2 and the truck bed. This improves safety during production, and the structure is simple and low-cost.

[0034] The structure of the connector 2 is not limited, as long as it can connect the two second supports b2 into one unit. In this embodiment, the connector 2 is set as a connecting plate 21 extending in the left-right direction, and the two ends of the connecting plate 21 are respectively connected to the two second supports b2. In another embodiment, the connector 2 can also be set as a rod, and the two ends of the rod are respectively connected to the two second supports b2.

[0035] Specifically, in this embodiment, referring to Figures 3 to 5The connecting plate 21 includes a first plate 211 and a second plate 212. The first plate 211 is attached to the rear side of the two second supports b2, and the first plate 211 has a plurality of connecting holes 2111 spaced apart in the left-right direction. The second plate 212 is connected to the upper side of the first plate 211 and is attached to the upper side of the two second supports b2. This design connects the two second supports b2 while limiting their relative movement, preventing relative front-back rotation between them. The structure is simple and the fixing is stable.

[0036] In order to make the cable 3 detachably connected to the connecting plate 21 and the subframe assembly c, in this embodiment, refer to Figures 2 to 5 The cable 3 includes a chain 31 and at least two buckles 32. Both ends of the chain 31 pass through the connecting hole 2111 and the mounting through hole on the subframe assembly c, respectively. The two buckles 32 connect the chain 31 to the links in the portion of the chain 31 passing through the connecting hole 2111 and the portion passing through the mounting through hole, respectively, to the links in the portion of the chain 31 located between the connecting hole 2111 and the connecting through hole, thereby connecting the chain 31 to the second bracket b2 and the subframe assembly c. Specifically, the buckles 32 are configured as spring buckles, carabiners, or quick-release buckles. Spring buckles, carabiners, or quick-release buckles are commonly used buckles 32 and will not be described in detail here.

[0037] Without limiting the structure of the cable 3, in another embodiment, the cable 3 may also include a steel wire rope and two hooks respectively disposed at both ends of the steel wire rope, the two hooks being used to hook the connecting hole 2111 and the mounting through hole of the subframe assembly c respectively.

[0038] In order to connect the connecting plate 21 to the two second brackets b2, refer to Figures 3 to 5 The front-mounted dump truck hydraulic cylinder fixing device further includes at least two mounting components 4. Each mounting component 4 includes a bolt 41 and a nut 42. Each bolt 41 passes through the through hole of each second bracket b2 and the corresponding connecting hole 2111 and is screwed to the corresponding nut 42. The structure is simple, easy to connect, and easy to set up. In this embodiment, of the plurality of connecting holes 2111, the two connecting holes 2111 located on the left and right sides correspond to the through holes of the two second brackets b2, respectively. The remaining connecting holes 2111 are used for connecting the cable 3.

[0039] Furthermore, in this embodiment, reference continues to be made to... Figures 3 to 5Each mounting assembly 4 further includes a washer 44 and a gasket 43. The washer 44 abuts against the nut 42, and the gasket 43 is located between the washer 44 and each of the second brackets b2. Each bolt 41 passes sequentially through the through hole of each of the second brackets b2, the corresponding connecting hole 2111, the inner hole of each gasket 43, and the inner hole of each washer 44 to connect with each of the nuts 42. Each gasket 43 makes the abutment between each nut 42 and each of the second brackets b2 more secure. Each washer 44 is used to distribute and reduce the load on each of the bolts 41 and each of the nuts 42.

[0040] Specifically, in this embodiment, referring to Figure 1 and Figure 2 The support structure 1 is configured as a pad 11, which is installed on the rear side of the cylinder seat a1 and near its lower end. When the hydraulic cylinder a rotates backward, the pad 11 naturally abuts against the first bracket b1, supporting the hydraulic cylinder a in a rearward tilted state. In another embodiment, the pad 11 can also be installed on the first bracket b1 and near the rear side of the cylinder seat a1. When the hydraulic cylinder a rotates backward, the hydraulic cylinder a naturally abuts against the pad 11, supporting the hydraulic cylinder a in a rearward tilted state.

[0041] This utility model does not limit the number of cables 3 provided, as long as they can be used together with the pad block 11 and the connector 2 to fix the hydraulic cylinder a. In this embodiment, two cables 3 are provided, which are distributed at intervals in the left and right direction and are respectively close to the two second supports b2; and the two cables 3 are symmetrically arranged in the left and right direction to ensure a stable connection.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hydraulic cylinder fixing device for a front-top dump truck, a cylinder base of a hydraulic cylinder is hinged to a first support on a truck body, and a driving rod of the hydraulic cylinder is hinged to two second supports on a truck bed respectively, characterized in that, The front tipping dumper hydraulic oil cylinder fixing device comprises: a support structure arranged at the rear side of the hydraulic oil cylinder to make the upper end of the hydraulic oil cylinder tilt backward; a connecting piece detachably connected to the two second supports; and a cable, two ends of which are detachably connected to the connecting piece and a sub-frame assembly at the rear side of the hydraulic oil cylinder.

2. The hydraulic cylinder mounting arrangement for a front-end dump truck as set forth in claim 1, wherein, The connecting piece is arranged as a connecting plate extending in the left-right direction, and two ends of the connecting plate are connected to the two second supports respectively.

3. The hydraulic cylinder mounting arrangement for a front-end dump truck as set forth in claim 2, wherein, The connecting plate comprises: a first plate piece abutting against the rear side surfaces of the two second supports, and the first plate piece is provided with a plurality of connecting holes spaced apart in the left-right direction, and a second plate piece connected to the upper side surface of the first plate piece and abutting against the upper side surfaces of the two second supports. The cable comprises a chain and at least two shackles, two ends of the chain pass through the connecting holes and mounting through holes of the sub-frame assembly respectively, and each shackle is used for connecting two links of the chain.

4. The hydraulic cylinder mounting assembly of claim 3, wherein: The front tipping dumper hydraulic oil cylinder fixing device further comprises at least two mounting assemblies, each mounting assembly comprises a bolt and a nut, each bolt passes through a through hole of each second support and a corresponding connecting hole and is screwed with a corresponding nut.

5. The hydraulic cylinder mounting assembly of claim 4, wherein: Each mounting assembly further comprises a washer and a gasket, the washer abuts against the nut, and the gasket is located between the washer and each second support.

6. The hydraulic cylinder mounting assembly of claim 1, wherein: The support structure is arranged as a pad, the pad is mounted at the rear side of the cylinder seat and close to the lower end thereof, or the pad is mounted on the first support and close to the rear side of the cylinder seat.

7. The hydraulic cylinder mounting assembly of claim 1, wherein: The cable is arranged as two, the two cables are spaced apart in the left-right direction and close to the two second supports respectively.

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