Plate spring pressing plate, plate spring assembly and vehicle

Abstract

The utility model discloses a leaf spring pressure plate, leaf spring assembly and vehicle, leaf spring pressure plate is used for leaf spring assembly, leaf spring assembly includes leaf spring and the centre bolt that passes through the leaf spring, leaf spring pressure plate includes body, the body is used for abutting the leaf spring, the body is provided with the location hole, and the location hole is located in the location hole. The positioning hole is used for being in threaded connection with the center bolt. According to the technical scheme, the technical problem that U-shaped bolts in an existing plate spring assembly are low in positioning accuracy is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a leaf spring pressure plate, a leaf spring assembly and a vehicle. Background Art

[0002] like Figure 5 In the leaf spring assembly structure of existing vehicles, the assembly method is to tighten the nut through the leaf spring center bolt after opening a hole in the leaf spring pressure plate, and the nut is positioned with the positioning hole. In order to facilitate assembly, the matching clearance between the nut and the leaf spring pressure plate is large, which affects the assembly accuracy between the leaf spring pressure plate and the spring leaf, and easily causes the positioning accuracy to decrease during the subsequent U-bolt assembly, resulting in torque attenuation after the U-bolt and nut are assembled, thereby affecting the driving safety of the vehicle. Utility Model Content

[0003] The main purpose of the utility model is to provide a leaf spring pressure plate, a leaf spring assembly and a vehicle, aiming at improving the positioning accuracy of the U-bolts of the leaf spring assembly.

[0004] To achieve the above-mentioned purpose, the utility model proposes a leaf spring pressure plate for a leaf spring assembly, wherein the leaf spring assembly includes a spring leaf and a center bolt passing through the spring leaf, and the leaf spring pressure plate includes a main body, wherein the main body is used to abut the spring leaf, and the main body is provided with a positioning hole, and the positioning hole is used to be screwed with the center bolt.

[0005] Optionally, the positioning hole is a threaded hole.

[0006] Optionally, the leaf spring pressure plate further includes a screw sleeve, the screw sleeve is embedded in the positioning hole, the positioning hole and the screw sleeve are interference fit, and the center bolt is threadedly connected to the screw sleeve.

[0007] Optionally, the main body is further provided with a limiting hole, which is arranged on the side of the positioning hole away from the spring leaf, and the aperture of the limiting hole is larger than the aperture of the positioning hole to form a step structure, and a positioning portion is protruding from one end of the screw sleeve, and the positioning portion abuts against the step structure.

[0008] Optionally, the leaf spring pressure plate further includes an anti-rotation structure, wherein the anti-rotation structure is disposed on the main body, and the anti-rotation structure is used to abut against the spring leaf to limit the rotation of the spring leaf.

[0009] Optionally, the anti-rotation structure includes at least two limiting bodies, and the at least two limiting bodies are protruded from the side of the main body facing the spring sheet and are arranged opposite to each other, and the at least two limiting bodies respectively abut against two opposite sides of the spring sheet.

[0010] Optionally, a limiting groove is provided on the side of the leaf spring pressure plate away from the spring leaf, the limiting grooves are symmetrically distributed on opposite sides of the positioning hole, and the limiting grooves extend along the width direction of the leaf spring pressure plate for positioning the U-bolt.

[0011] Optionally, the leaf spring pressure plate is provided with two first support bodies protruding from one side of the spring leaf, the two first support bodies are symmetrically distributed on opposite sides of the positioning hole and opposite to the limiting groove, and the first support bodies are used to abut against the spring leaf.

[0012] Optionally, the two first support bodies are combined to form an avoidance groove;

[0013] Wherein, a reinforcing rib is convexly provided in the avoidance groove; and / or, a second support body is convexly provided in the avoidance groove, the second support body is arranged at the periphery of the positioning hole, and the second support body is used to improve the strength of the main body.

[0014] The utility model also provides a leaf spring assembly, comprising:

[0015] reed;

[0016] A central bolt, passing through the reed;

[0017] The leaf spring pressure plate is the leaf spring pressure plate mentioned above, the body of the leaf spring pressure plate is in contact with the spring leaf, and the positioning hole is screwed with the center bolt.

[0018] The utility model also provides a vehicle, comprising the leaf spring assembly mentioned above.

[0019] Compared with the prior art, in the technical scheme of the utility model, the leaf spring pressure plate is used for the synthetic assembly of the leaf spring assembly and the positioning of the U-bolt, wherein the leaf spring assembly includes a spring leaf and a center bolt passing through the spring leaf, and the leaf spring pressure plate includes a main body, a positioning hole is provided on the main body, the positioning hole is screwed with the center bolt, and the positioning between the leaf spring pressure plate and the spring leaf is achieved by the limiting between the center bolt and the spring leaf and the limiting between the main body and the center bolt; in this scheme, the positioning hole is screwed with the center bolt, and compared with the traditional method of tightening the nut with the center bolt and positioning by the nut and the positioning hole, the matching accuracy between the positioning hole and the center bolt is improved, thereby improving the matching accuracy between the leaf spring pressure plate and the spring leaf, improving the positioning accuracy of the U-bolt, and effectively reducing the incidence of torque attenuation when the U-bolt is tightened. This is beneficial to improving the overall reliability of the leaf spring assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of the leaf spring assembly of the utility model;

[0022] Figure 2 Another structural schematic diagram of the leaf spring assembly of the utility model;

[0023] Figure 3 A schematic diagram of the structure of the leaf spring pressure plate of the utility model;

[0024] Figure 4 Another structural schematic diagram of the leaf spring pressure plate of the utility model;

[0025] Figure 5 It is a structural schematic diagram of a traditional leaf spring assembly.

[0026] Description of Figure Numbers:

[0027]

[0028] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on 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.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0033] In order to solve the technical problem of low positioning accuracy of the U-bolt 30 in the existing leaf spring assembly, the present technical solution proposes a leaf spring pressure plate 100, which is used for the leaf spring assembly. The leaf spring assembly includes a spring leaf 10 and a center bolt 20 passing through the spring leaf 10. The leaf spring pressure plate 100 includes a main body 110, which is used to abut the spring leaf 10. The main body 110 is provided with a positioning hole 120, which is used to be screwed with the center bolt 20.

[0034] Furthermore, the positioning hole 120 is a threaded hole.

[0035] Compared with the prior art, in the technical solution of the utility model, the leaf spring pressure plate 100 is used for the synthetic assembly of the leaf spring assembly and the positioning of the U-bolt 30, wherein the leaf spring assembly includes a leaf spring 10 and a center bolt 20 penetrating the leaf spring 10, and the leaf spring pressure plate 100 includes a body 110, and the body 110 is provided with a positioning hole 120, and the positioning hole 120 is screwed with the center bolt 20, and the leaf spring pressure plate 100 is realized by the limit between the center bolt 20 and the leaf spring 10 and the limit between the body 110 and the center bolt 20. 00 and the spring leaf 10; in the present embodiment, the positioning hole 120 is threadedly connected with the center bolt 20. Compared with the conventional method of tightening the nut with the center bolt and positioning the nut through the nut and the positioning hole, the matching accuracy between the positioning hole 120 and the center bolt 20 is improved, thereby improving the matching accuracy between the leaf spring pressure plate 100 and the spring leaf 10, improving the positioning accuracy of the U-bolt 30, and effectively reducing the incidence rate of torque attenuation when tightening the nut by the U-bolt 30, which is beneficial to improving the overall reliability of the leaf spring assembly.

[0036] Specifically, as shown in the figure, in this embodiment, the leaf spring pressure plate 100 is used to limit and fix the spring leaf 10 in the leaf spring assembly. The spring leaf 10 is initially positioned with the leaf spring pressure plate 100 through the center bolt 20, and then the leaf spring pressure plate 100 and the spring leaf 10 are completely fixed with the U-bolt 30 to form the final assembly of the leaf spring assembly; in this technical solution, the leaf spring pressure plate 100 includes a body 110, which is a plate-like structural member, and a positioning hole 120 is opened at the center of the body 110 for being aligned with the center bolt 20, the center bolt 20 is a bolt structure, the center bolt 20 passes through the spring leaf 10 and then enters the positioning hole 120, and is screwed with the positioning hole 120, so that the center bolt 20 can be fixed with the leaf spring pressure plate 100, and the center bolt 20 and the positioning hole 120 are positioned by threaded matching, thereby realizing the positioning between the leaf spring pressure plate 100 and the spring leaf 10, the center bolt 20 of the traditional structure passes through the spring leaf 10 and is fixed with a nut, and then is assembled and positioned with the nut and the positioning hole of the leaf spring pressure plate 100, and then is tightened and fixed with a U-bolt. Compared with this example, the method of directly screwing the center bolt 20 and the positioning hole 120 can improve the accuracy after matching, thereby improving the accuracy of the subsequent U-bolt 30 during assembly, thereby improving the overall assembly accuracy of the leaf spring assembly, which is beneficial to improving the performance of the leaf spring assembly. In order to simplify the process, in this solution, the inner wall of the positioning hole 120 can be directly made with an internal thread and threadedly connected with the center bolt 20, so that the structure of the leaf spring pressure plate 100 can be simplified, the number of parts can be reduced, and the production cost can be reduced.

[0037] Furthermore, the leaf spring pressure plate 100 further includes a threaded sleeve 130 , which is embedded in the positioning hole 120 . The threaded sleeve 130 and the positioning hole 120 are interference fit, and the center bolt 20 is threadedly connected to the threaded sleeve 130 .

[0038] Furthermore, in order to reduce maintenance costs, in another solution, the positioning hole 120 can be a through hole, and the leaf spring pressure plate 100 also includes a screw sleeve 130, which can be embedded in the positioning hole 120 and fixed in the positioning hole 120 by an interference fit. The center bolt 20 and the screw sleeve 130 can be threadedly connected to achieve connection with the leaf spring pressure plate 100 body 110; in this solution, the screw sleeve 130 is separately provided, and the screw sleeve 130 can be replaced when the thread of the screw sleeve 130 is damaged without replacing the entire leaf spring pressure plate 100, thereby reducing maintenance costs.

[0039] Furthermore, the main body 110 is also provided with a limiting hole 140, which is arranged on the side of the positioning hole 120 away from the spring leaf 10, and the aperture of the limiting hole 140 is larger than the aperture of the positioning hole 120 to form a step structure, and a positioning portion is protruding from one end of the screw sleeve 130, and the positioning portion abuts against the step structure.

[0040] In addition, in order to improve the connection reliability between the screw sleeve 130 and the body 110, a limiting hole 140 is further provided on the body 110. The limiting hole 140 is arranged on the side of the positioning hole 120 away from the spring sheet 10. The limiting hole 140 is coaxially arranged with the positioning hole 120 and the aperture of the limiting hole 140 is larger than the aperture of the positioning hole 120. In this way, the limiting hole 140 and the positioning hole 120 can jointly constitute a countersunk hole structure, and a step structure can be formed between the positioning hole 120 and the limiting hole 140. Accordingly, when the screw sleeve 130 is away from the spring sheet 10, the limiting hole 140 can be placed on the body 110. An annular positioning portion may be protruded on the peripheral wall of one end of the leaf 10. When the screw sleeve 130 is inserted into the positioning hole 120, the positioning portion may abut against the above-mentioned step structure for limiting position. In this way, after the screw sleeve 130 is threadedly connected with the center bolt 20, the center bolt 20 applies a force toward one side of the spring leaf 10 to the screw sleeve 130, and the screw sleeve 130 applies a force in the same direction to the main body 110 through the positioning portion, so that the main body 110 can be tightly abutted against the spring leaf 10, which is beneficial to improving the stability of the fit between the leaf spring pressure plate 100 and the spring leaf 10.

[0041] Furthermore, the leaf spring pressure plate 100 further includes an anti-rotation structure 150 , which is disposed on the body 110 . The anti-rotation structure 150 is used to abut against the spring leaf 10 to limit the rotation of the spring leaf 10 .

[0042] In order to further improve the stability of the cooperation between the leaf spring pressure plate 100 and the spring leaf 10, the leaf spring pressure plate 100 is also provided with an anti-rotation structure 150, which is arranged on the main body 110, and the anti-rotation structure 150 abuts and limits the opposite sides of the spring leaf 10. The anti-rotation structure 150 can be a protrusion arranged on the main body 110, and a groove cooperating with the protrusion can be arranged on the spring leaf 10. The protrusion can be embedded in the groove and abut against the inner wall of the groove, thereby limiting the rotation of the spring leaf 10 relative to the leaf spring pressure plate 100, thereby ensuring the relative stability of the position of the leaf spring pressure plate 100 and the spring leaf 10 after assembly.

[0043] Furthermore, the anti-rotation structure 150 includes at least two limiters, which are protruded from the body 110 and face the spring leaf 10 and are arranged opposite to each other. The at least two limiters respectively abut against two opposite sides of the spring leaf 10 .

[0044] As shown in the figure, in this embodiment, the anti-rotation structure 150 includes at least two limit bodies, and at least two limit bodies are protruded on the side of the main body 110 facing the spring leaf 10. In this solution, four limit bodies can be provided, and the four limit bodies are respectively provided with two limit bodies on the two opposite long sides of the main body 110, and the positions of the limit bodies on the two opposite long sides correspond to each other. After the main body 110 and the spring leaf 10 are matched, the limit bodies can abut against the opposite sides of the spring leaf 10, and the limit bodies cooperate with each other to clamp the spring leaf 10 to prevent the spring leaf 10 from rotating relative to the main body 110, thereby improving the stability of the assembly of the leaf spring pressure plate 100 and the spring leaf 10.

[0045] Furthermore, a limiting groove 160 is provided on the side of the leaf spring pressure plate 100 away from the spring leaf 10 . The limiting grooves 160 are symmetrically distributed on opposite sides of the positioning hole 120 . The limiting grooves 160 extend along the width direction of the leaf spring pressure plate 100 to position the U-bolt 30 .

[0046] As shown in the figure, a limiting groove 160 is provided on the side of the leaf spring pressure plate 100 facing away from the spring leaf 10, and the limiting groove 160 is symmetrically distributed on the opposite sides of the positioning hole 120. In the present embodiment, two limiting grooves 160 are provided, and the two limiting grooves 160 are arranged at the opposite ends of the long axis direction of the leaf spring pressure plate 100. Each limiting groove 160 extends along the width direction of the leaf spring pressure plate 100. During assembly, the bending part of the U-shaped bolt 30 can be inserted into the limiting groove 160. The limiting effect of the limiting groove 160 prevents the U-shaped bolt 30 from shaking, thereby ensuring the stability of the U-shaped bolt 30 when tightening the leaf spring pressure plate 100 and the spring leaf 10.

[0047] Furthermore, two first support bodies 170 are protruded from the leaf spring pressure plate 100 toward the spring leaf 10 . The two first support bodies 170 are symmetrically distributed on opposite sides of the positioning hole 120 and opposite to the limiting groove 160 . The first support bodies 170 are used to abut against the spring leaf 10 .

[0048] As shown in the figure, in this embodiment, two first support bodies 170 are protruded from the side of the leaf spring pressure plate 100 facing the spring leaf 10, and the positions of the two first support bodies 170 correspond to the positions of the limiting grooves 160. In this way, after the leaf spring pressure plate 100 is assembled, the force applied to the leaf spring pressure plate 100 by the U-bolt 30 will be transmitted to the spring leaf 10 through the first support body 170. The end face of the first support body 170 facing the spring leaf 10 is a plane that matches the spring leaf 10. The arrangement of the first support body 170 can improve the structural strength of the leaf spring pressure plate 100 at the position matching with the U-bolt 30. In addition, during processing, only the end face of the first support body 170 facing the spring leaf 10 needs to be processed to make it fit with the spring leaf 10, and there is no need to process other areas of the leaf spring pressure plate 100, which can reduce the processing difficulty and processing cost.

[0049] Furthermore, the two first support bodies 170 are combined to form an avoidance groove;

[0050] A reinforcing rib 180 is convexly provided in the avoidance groove; and / or a second support body 190 is convexly provided in the avoidance groove, and the second support body 190 is arranged at the periphery of the positioning hole 120 , and the second support body 190 is used to improve the strength of the main body 110 .

[0051] In this embodiment, the two first support bodies 170 are surrounded to form an avoidance groove, and the avoidance groove can prevent the middle area of ​​the leaf spring pressure plate 100 from directly contacting the spring leaf 10 after assembly. A reinforcing rib 180 can be protruded in the avoidance groove, and the reinforcing rib 180 can extend along the length direction of the leaf spring pressure plate 100. The two ends of the reinforcing rib 180 are respectively connected to the two first support bodies 170, so that the overall strength and pressure bearing capacity of the leaf spring pressure plate 100 can be improved. In addition, a second support can be protruded in the avoidance groove. The support body 190, the second support body 190 is a truncated cone structure, and the second support body 190 is arranged on the periphery of the positioning hole 120. After assembly, the second support body 190 and the first support body 170 can both abut against the spring leaf 10, so as to disperse the local force of the leaf spring pressure plate 100, and the cooperation between the center bolt 20 and the positioning hole 120 can also make the leaf spring pressure plate 100 and the spring leaf 10 be pressed together through the second support body 190, thereby further improving the connection stability between the leaf spring pressure plate 100 and the spring leaf 10.

[0052] The utility model also provides a leaf spring assembly, which includes:

[0053] Reed 10;

[0054] A central bolt 20 is inserted through the reed 10;

[0055] The leaf spring pressure plate 100 is the leaf spring pressure plate 100 in the above embodiment, the body 110 of the leaf spring pressure plate 100 is in contact with the spring leaf 10, and the positioning hole 120 is screwed with the center bolt 20. In the present leaf spring assembly, since the leaf spring pressure plate 100 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0056] The utility model also proposes a vehicle, which includes a vehicle body and a leaf spring assembly. The specific structure of the leaf spring assembly refers to the above-mentioned embodiment. Since the vehicle adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0057] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A leaf spring pressure plate, used for a leaf spring assembly, the leaf spring assembly comprising a leaf spring and a central bolt passing through the leaf spring, characterized in that: The leaf spring pressure plate comprises a body, the body is used to abut against the spring leaf, the body is provided with a positioning hole, and the positioning hole is used to be screwed with the central bolt; The leaf spring pressure plate also includes a screw sleeve, which is embedded in the positioning hole. The positioning hole and the screw sleeve are interference fit, and the center bolt is threadedly connected to the screw sleeve.

2. The leaf spring pressure plate according to claim 1, characterized in that: The positioning hole is a threaded hole.

3. The leaf spring pressure plate according to claim 1, characterized in that: The body is also provided with a limiting hole, which is arranged on the side of the positioning hole away from the spring leaf. The aperture of the limiting hole is larger than the aperture of the positioning hole to form a step structure. A positioning portion is protruding from one end of the screw sleeve, and the positioning portion abuts against the step structure.

4. The leaf spring pressure plate according to claim 1, characterized in that: The leaf spring pressure plate also includes an anti-rotation structure, which is arranged on the main body and is used to abut against the spring leaf to limit the rotation of the spring leaf.

5. The leaf spring pressure plate according to claim 4, characterized in that: The anti-rotation structure includes at least two limiting bodies, at least two limiting bodies are protruded from the side of the body facing the spring sheet and are arranged opposite to each other, and at least two limiting bodies respectively abut against two opposite sides of the spring sheet.

6. The leaf spring pressure plate according to claim 1, characterized in that: A limiting groove is provided on the side of the leaf spring pressure plate away from the spring sheet, and the limiting grooves are symmetrically distributed on the opposite sides of the positioning hole. The limiting grooves extend along the width direction of the leaf spring pressure plate to position the U-bolt.

7. The leaf spring pressure plate according to claim 6, characterized in that: The leaf spring pressure plate is provided with two first support bodies protruding toward one side of the spring sheet, and the two first support bodies are symmetrically distributed on opposite sides of the positioning hole and opposite to the position of the limiting groove, and the first support bodies are used to abut against the spring sheet.

8. The leaf spring pressure plate according to claim 7, characterized in that: The two first supporting bodies are combined to form an avoidance groove; Wherein, a reinforcing rib is convexly provided in the avoidance groove; and / or, a second support body is convexly provided in the avoidance groove, the second support body is arranged at the periphery of the positioning hole, and the second support body is used to improve the strength of the main body.

9. A leaf spring assembly, characterized in that: include: reed; A central bolt, passing through the reed; The leaf spring pressure plate is the leaf spring pressure plate according to any one of claims 1 to 8, wherein the body of the leaf spring pressure plate abuts against the spring leaf, and the positioning hole is threadedly connected to the center bolt.

10. A vehicle, characterized in that: Includes the leaf spring assembly described in claim 9.

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