Picking platform type folding arm lifting lug

Abstract

The upper arm lifting lug and the lower arm lifting lug of the cantilever type folding arm lifting lug can be flexibly unfolded and folded within a certain range after being assembled, and the cantilever type folding arm lifting lug is a suspension used for combining a steel plate spring and a spiral spring or an air spring. When the vehicle is in light load, the lifting lug of the lifting platform type folding arm is in an open state, the spiral spring or the air spring is used for bearing and damping to improve comfort, and the lifting lug of the lifting platform type folding arm and the steel plate spring are used for guiding and stabilizing the position of a rear axle at the moment. If the off-road vehicle passes through a cross shaft in the off-road process, the lifting lug of the lifting platform type folding arm can provide a large stroke for wheels, so that the stability and passing ability of the off-road vehicle are improved. When a vehicle has a large load capacity, the lifting lug of the lifting platform type folding arm can be folded to enable the stopper rubber pier (205) to directly abut against the bottom of an automobile girder, the steel plate spring and the spiral spring or the air spring are used for bearing and damping together, and at the moment, the lifting lug of the lifting platform type folding arm and the steel plate spring have the functions of the original common lifting lug and the steel plate spring.

Description

Technical Field

[0001] The invention relates to the technical field of automobile chassis suspension systems, and in particular to a rear hanging ear of an automobile leaf spring. Background Art

[0002] The main functions of the rear suspension ear of the automobile leaf spring are: support, shock absorption, damping and buffering, and guiding. The advantage is strong load-bearing capacity, and the disadvantage is poor comfort and small suspension travel between the wheel and the frame. Summary of the invention

[0003] The object of the present invention is to provide a rear hanging eye of a suspension which is a combination of a leaf spring and a coil spring or an air spring, which retains the advantage of the existing leaf spring rear hanging eye in terms of strong load-bearing capacity, increases comfort and increases the suspension travel between the wheel and the frame.

[0004] The cantilever folding arm lifting ear provided by the embodiment of the present invention is composed of two arms, an upper arm lifting ear and a lower arm lifting ear. The upper arm lifting ear is integrally provided with: an upper arm lifting ear support plate (101); an upper arm lifting ear cross beam (102); an upper arm lifting ear reinforcement rib (103); a bolt hole reinforcement gasket (104); a bolt hole (105) for connecting and installing the automobile beam; and a bolt hole (106) for connecting the lower arm lifting ear. The lower arm lifting ear is also integrally provided with: a lower arm lifting ear support plate (201); a bushing seat sleeve (202); a rubber pier base (203) of the lower arm lifting ear; a lower arm lifting ear reinforcement rib (204); a stopper rubber pier (205); a rubber pier installation screw hole (206); a bolt hole (207) for connecting and installing the automobile leaf spring; and a bolt hole reinforcement gasket (208) for connecting and installing the automobile leaf spring.

[0005] In the embodiment of the present invention, the upper arm lifting ear and the lower arm lifting ear of the cantilever type folding arm lifting ear are connected and assembled by a bearing bushing joint, one end of the upper arm lifting ear is connected and installed with the vehicle bottom beam, and one end of the lower arm lifting ear is connected and installed with the leaf spring. The cantilever type folding arm lifting ear can be installed toward the front or rear of the vehicle, because the trailer hook bracket of some models cannot be installed toward the rear due to space constraints, so it needs to be installed toward the front.

[0006] The beneficial effects of the present invention are as follows: the upper arm ear and the lower arm ear of the cantilever-type folding arm ear provided in the embodiment of the present invention can be flexibly opened and closed within a certain range after being assembled, and it is a suspension used in a combination of a leaf spring and a coil spring or an air spring. When the vehicle is lightly loaded, the folding arm ear is in an open state, and the coil spring or air spring bears the weight and reduces shock to improve comfort. If the off-road vehicle crosses the axle during off-roading, the folding arm ear can provide a larger travel for the wheel to improve the stability of the off-road vehicle. When the vehicle is heavily loaded, the folding arm ear is in a closed state, and the leaf spring and the coil spring or air spring bear the weight and reduce shock together, retaining the strong load-bearing characteristics of the existing leaf spring. The rubber pier base (203) of the lower arm lifting ear is at the position where the lower arm lifting ear support plate (201) extends from the platform. The rubber pier base (203) of the lower arm lifting ear can be designed to be higher or lower according to different requirements for the height of the stopper rubber pier (205). The purpose of the lower position of the stopper rubber pier (205) is to allow the vehicle body to be replaced without raising the platform-type folding arm lifting ear. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments.

[0008] Figure 1 A side view of a cantilever folding arm crane provided in an embodiment of the present invention installed between a vehicle beam and a leaf spring;

[0009] Figure 2 A diagram of an upper arm lifting lug of a cantilevered folding arm lifting lug provided in an embodiment of the present invention;

[0010] Figure 3 A diagram of the lower arm lifting lug of a cantilever type folding arm lifting lug provided in an embodiment of the present invention;

[0011] Figure 4 A side view of a raised version of a cantilever folding arm lifting eye provided by an embodiment of the present invention installed between a vehicle beam and a leaf spring;

[0012] Figure 5 A diagram of a raised lower arm lifting lug of a cantilevered folding arm lifting lug provided in an embodiment of the present invention;

[0013] Figure 6 A full diagram of the design of the cantilever folding arm lifting lugs provided by the embodiment of the present invention for different vehicle models;

[0014] In the figure: upper arm lifting ear support plate (101); upper arm lifting ear cross beam (102); upper arm lifting ear reinforcement rib (103); bolt hole reinforcement gasket (104); bolt hole (105) for connecting and installing the automobile beam; bolt hole (106) for connecting the lower arm lifting ear; lower arm lifting ear support plate (201); bushing seat sleeve (202); lower arm lifting ear rubber pier base (203); lower arm lifting ear reinforcement rib (204); limiter rubber pier (205); rubber pier installation screw hole (206); connecting and installing the automobile steel Bolt holes (207) of leaf springs; bolt hole reinforcement gaskets (208) for connecting and installing automobile leaf springs; elevated lower arm lifting lug support plate (301); bushing seat sleeve (302); rubber pier base (303) of lower arm lifting lugs; lower arm lifting lug reinforcement ribs (304); rubber pier mounting screw holes (306); bolt holes (307) for connecting and installing automobile leaf springs; bolt hole reinforcement gaskets (308) for connecting and installing automobile leaf springs; automobile beam (401); automobile leaf spring (402). DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are embodiments of a part of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings can be arranged and designed in various different configurations.

[0016] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the application claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition and explanation in the subsequent drawings.

[0018] In the description of the present invention, it should be noted that the terms "one end", "front", "side", "open", "closed", "hole", "position", "front", "back", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention or simplifying the description, and therefore cannot be understood as limiting the present invention.

[0019] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "arrange", "install", "provided with", "connected", and "fixed" should be understood in a broad sense. For example, it can be a joint bearing connection, a welding fixed connection, a detachable connection, a gear connection, an indirect connection through an intermediate medium, or a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] The features and performances of the cantilever folding arm lifting ears of the present invention are described in further detail below in conjunction with the embodiments.

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 ,and Figure 6 As shown, the cantilevered folding arm lifting ear provided by the embodiment of the present invention is composed of an upper arm lifting ear and a lower arm lifting ear connected by a bearing bushing joint, one end of the upper arm lifting ear is connected and installed with the vehicle bottom beam, and one end of the lower arm lifting ear is connected and installed with the leaf spring. The upper arm lifting ear support plate (101); the upper arm lifting ear cross beam (102); the upper arm lifting ear reinforcement rib (103); and the bolt hole reinforcement gasket (104) of the upper arm lifting ear are integrated, and the lower arm lifting ear support plate (201); the bushing seat sleeve (202); the rubber pier base (203) of the lower arm lifting ear; the lower arm lifting ear reinforcement rib (204); and the bolt hole reinforcement gasket (208) for connecting and installing the automobile leaf spring are integrated.

[0022] like Figure 1 , Figure 2 and Figure 3As shown, the upper arm lifting ear of the cantilever type folding arm lifting ear provided by the embodiment of the present invention is provided with: an upper arm lifting ear support plate (101); an upper arm lifting ear cross beam (102); an upper arm lifting ear reinforcement rib (103); a bolt hole reinforcement gasket (104); a bolt hole (105) for connecting and installing the automobile beam; and a bolt hole (106) for connecting the lower arm lifting ear. The position of the bolt hole (105) for connecting and installing the automobile beam is designed to be bent upward on the upper arm lifting ear support plate (101), and the upper arm lifting ear cross beam (102) and the upper arm lifting ear reinforcement rib (103) are located in the middle of the upper arm lifting ear support plate (101). When installed at the automobile beam position, the upper arm lifting ear cross beam (102) and the upper arm lifting ear reinforcement rib (103) have a larger range of movement. The upper arm lifting ear reinforcement rib (103) is narrower than the width of the upper arm lifting ear support plate (101) to leave space for movement between the upper part of the folding arm lifting ear and the automobile beam. The lower arm lifting ear is provided with: a lower arm lifting ear support plate (201); a bushing seat sleeve (202); a rubber pier base (203) of the lower arm lifting ear; a lower arm lifting ear reinforcement rib (204); a stopper rubber pier (205); a rubber pier installation screw hole (206); a bolt hole (207) for connecting and installing an automobile leaf spring; and a bolt hole reinforcement gasket (208) for connecting and installing an automobile leaf spring. The position where the bushing seat sleeve (202) bends upward at one end of the lower arm lifting ear support plate (201) allows enough space for the cantilever type folding arm lifting ear to be closed. The lower arm lifting ear reinforcement rib (204) is located below the rubber pier base (203) of the lower arm lifting ear. The rubber pier base (203) of the lower arm lifting ear is located at the position of the cantilever extending from the bolt hole (207) for connecting and installing the automobile leaf spring of the lower arm lifting ear support plate (201). The rubber pier base (203) of the lower arm lifting ear can be designed to be higher or lower according to different requirements for the position of the limiter rubber pier (205). The purpose of the lower position of the limiter rubber pier (205) is to allow the vehicle body to be replaced without raising when replacing the cantilever type folding arm lifting ear.

[0023] like Figure 4 and Figure 5As shown, the raised version of the cantilever-type folding arm lifting ear provided by the embodiment of the present invention, the lower arm lifting ear is provided with: an elevated lower arm lifting ear support plate (301); a bushing seat sleeve (302); a rubber pier base (303) of the lower arm lifting ear; a lower arm lifting ear reinforcement rib (304); a rubber pier mounting screw hole (306); a bolt hole (307) for connecting and installing an automobile leaf spring; a bolt hole reinforcement gasket (308) for connecting and installing an automobile leaf spring; and a limiter rubber pier (205). The bolt hole (105) for connecting and installing the automobile beam is designed to be bent upward on the upper arm lifting ear support plate (101); the upper arm lifting ear cross beam (102) and the upper arm lifting ear reinforcement rib (103) are located in the middle of the upper arm lifting ear support plate (101); the upper arm lifting ear cross beam (102) and the upper arm lifting ear reinforcement rib (103) are installed at the position of the automobile beam so that the upper arm lifting ear cross beam (102) and the upper arm lifting ear reinforcement rib (103) have a larger range of movement; the upper arm lifting ear reinforcement rib (103) is narrower than the width of the upper arm lifting ear support plate (101) to leave space for movement between the upper part of the folding arm lifting ear and the automobile beam. The elevated lower arm lifting ear is provided with: a lower arm lifting ear support plate (301); a bushing seat sleeve (302); a rubber pier base (303) of the lower arm lifting ear; a lower arm lifting ear reinforcement rib (304); a stopper rubber pier (205); a rubber pier mounting screw hole (306); a bolt hole (307) for connecting and installing an automobile leaf spring; and a bolt hole reinforcement gasket (308) for connecting and installing an automobile leaf spring. The position where the bushing seat sleeve (302) bends upward at one end of the lower arm lifting ear support plate (301) is to allow enough space for the cantilever type folding arm lifting ear to be closed. The rubber pier base (303) of the lower arm lifting eye is located at a platform position above the bolt hole (307) for connecting and installing the automobile leaf spring of the lower arm lifting eye support plate (301), and the lower arm lifting eye reinforcement rib (304) is located inside the bolt hole (307) for connecting and installing the automobile leaf spring of the lower arm lifting eye support plate (301). The rubber pier base (303) of the lower arm lifting eye of the platform type folding arm lifting eye is located at a relatively high position, so the platform extension does not need to be too long.

[0024] like Figure 3 , Figure 5 and Figure 6 As shown, the lower arm lifting ear of the cantilever folding arm lifting ear provided by the embodiment of the present invention has a bending design. Because the outer side of the leaf spring of some models is aligned with the outer side of the beam, the middle section of the lower arm lifting ear support plate (201) is bent smoothly. The leaf spring of some models is aligned with the center of the beam. To deal with two different models, different solutions are designed to deal with different models. It can be seen that the wide upper arm lifting ear is connected to the automobile beam, and the narrow lower arm lifting ear is connected to the leaf spring. The upper arm lifting ears of the two design solutions are the same, but the lower arm lifting ears are different. One is a center design, and the other is a side-to-side alignment design.

[0025] like Figure 1 and Figure 4As shown, the cantilever folding arm lifting ear provided in the embodiment of the present invention can be installed toward the front or rear of the vehicle, because the trailer hook bracket of some vehicle models cannot be installed toward the rear due to space constraints, so it needs to be installed toward the front.

[0026] The cantilever folding arm lifting ear provided by the embodiment of the present invention has a working structure principle: the upper arm lifting ear and the lower arm lifting ear can be flexibly opened and closed within a certain range after being assembled, and is used in a suspension composed of a leaf spring and a coil spring or an air spring. When the vehicle is lightly loaded, the cantilever folding arm lifting ear is in an open state, and the coil spring or the air spring bears the weight and reduces the shock to improve the comfort. At this time, the cantilever folding arm lifting ear and the leaf spring play the role of guiding and stabilizing the position of the rear axle. If the off-road vehicle passes the cross axle during the off-road process, the cantilever folding arm lifting ear can provide a larger travel for the wheel to improve the stability and passability of the off-road vehicle. When the vehicle is heavily loaded, the cantilever folding arm lifting ear will be closed so that the limiter rubber pier (205) is pushed against the bottom of the vehicle beam, and the leaf spring and the coil spring or the air spring bear the weight and reduce the shock together. At this time, the cantilever folding arm lifting ear and the leaf spring play the role of the original ordinary lifting ear and the leaf spring, and the strong load-bearing characteristics of the existing leaf spring are retained.

[0027] The embodiments described above are part of the embodiments of the present invention, rather than all of the embodiments. The detailed description of the embodiments of the present invention is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Claims

1. The cantilever folding arm lifting lug is characterized by: The upper arm lifting ear and the lower arm lifting ear are assembled by joint connection of a bearing bushing, an upper arm lifting ear support plate (101) and an upper arm lifting ear cross beam (102) as well as an upper arm lifting ear reinforcement rib (103) and a bolt hole reinforcement gasket (104) are fixedly connected as a whole, and bolt holes (105) for connecting and installing the automobile beam and bolt holes (106) for connecting the lower arm lifting ear are provided at both ends of the upper arm lifting ear support plate (101). The lower arm lifting ear support plate (201) is fixedly connected with the bushing seat sleeve (202), the rubber pier base (203) of the lower arm lifting ear, the lower arm lifting ear reinforcement rib (204), and the bolt hole reinforcement gasket (208) for connecting and installing the automobile leaf spring. One end of the lower arm lifting ear support plate (201) is provided with a bushing seat sleeve (202), and the other end is provided with a bolt hole (207) for connecting and installing the automobile leaf spring, and a rubber pier (205) for installing a limiter is extended to the platform.

2. The cantilever type folding arm lifting ear according to claim 1, characterized in that: One end of the upper arm lifting ear is provided with a bolt hole (105) for connecting and installing the automobile beam, and the position of the upper arm lifting ear support plate (101) is designed to be bent upward.

3. The cantilever type folding arm lifting ear according to claim 2, characterized in that: The upper arm lifting ear cross beam (102) and the upper arm lifting ear reinforcement rib (103) are located in the middle of the upper arm lifting ear support plate (101), and the upper arm lifting ear reinforcement rib (103) is narrower than the width of the upper arm lifting ear support plate (101).

4. The cantilever type folding arm lifting ear according to claim 3, characterized in that: The bushing seat sleeve (202) is located at a position where one end of the lower arm lifting ear support plate (201) bends upward, and the rubber pier base (203) of the lower arm lifting ear is connected to the bolt hole (207) for installing the automobile leaf spring at the other end of the lower arm lifting ear support plate (201) to extend the platform.

5. The cantilever type folding arm lifting eye according to claim 4, characterized in that: The rubber pier base (203) of the lower arm lifting ear can be designed to be higher or lower according to different requirements for the height of the stopper rubber pier (205). The purpose of the lower position of the stopper rubber pier (205) is to allow the vehicle body to be replaced without raising the platform-type folding arm lifting ear.

6. The cantilever type folding arm lifting eye according to claim 5, characterized in that: The position where the raised bushing seat sleeve (302) bends upward at one end of the lower arm lifting ear support plate (301) is to allow enough space for the cantilevered folding arm lifting ear to be closed. The rubber pier base (303) of the lower arm lifting ear is located at a cantilevered position above the bolt hole (307) of the lower arm lifting ear support plate (301) for connecting and installing the automobile leaf spring, and the lower arm lifting ear reinforcement rib (304) is located inside the bolt hole (307) of the lower arm lifting ear support plate (301) for connecting and installing the automobile leaf spring. The rubber pier base (303) of the lower arm lifting ear of the cantilevered folding arm lifting ear is located at a relatively high position, so the cantilever extension does not need to be too long.

7. The cantilever type folding arm lifting eye according to claim 6, characterized in that: The lower arm lifting ear support plate has a bending design. Because the outer side of the leaf spring of some models is aligned with the outer side of the beam, the middle section of the lower arm lifting ear support plate (201) is bent straight. The leaf spring of some models is aligned with the center of the beam. Different solutions are designed to deal with the two different models. The upper arm lifting ears of the two design solutions are the same, but the lower arm lifting ears are different. One is a center-aligned design, and the other is a side-aligned design.

8. The cantilever type folding arm lifting eye according to claim 7, characterized in that: The cantilever folding arm lifting ear can be installed toward the front or rear of the vehicle, because the trailer hook bracket of some vehicle models cannot be installed toward the rear due to space constraints, so it needs to be installed toward the front.

9. The cantilever type folding arm lifting eye according to claim 8, characterized in that: When the vehicle is loaded with a large load, the lifting ears of the platform-type folding arms will be closed so that the stopper rubber pier (205) directly touches the bottom of the vehicle beam, and the leaf spring and the spiral spring or the air spring bear the load and reduce the shock.

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