Rear axle damping device

Abstract

The utility model discloses a rear axle damping device which comprises a rear axle body, plate springs are arranged above the two sides of the rear axle body, mounting holes used for being connected with a frame are formed in the two ends of the two sets of plate springs, and the middles of the two sets of plate springs are fixedly mounted on the upper portions of the corresponding sides of the rear axle body through clamping assemblies. According to the rear axle assembly, the clamping assemblies are arranged, so that the plate spring can be firmly fixed to the upper portion of the corresponding side of the rear axle body, the stability of connection between the plate spring and the rear axle is guaranteed, the plate spring can be firmly fixed to the upper portion of the corresponding side of the rear axle body, and therefore the plate spring can be firmly fixed to the rear axle body, and the service life of the rear axle is prolonged. According to the rear axle structure, the plate springs are arranged on the rear axle body, so that the plate springs are not easy to shift and fall off even if the vehicle is severely jolted and vibrated under complex road conditions in the driving process, the reliability of the whole chassis structure is guaranteed, meanwhile, the surface of the rear axle body does not need to be slotted, and the structural strength of the rear axle body is not influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of rear axle damping device for golf sightseeing car, concretely is a rear axle damping device. BACKGROUND

[0002] Golf sightseeing car, also called electric golf sightseeing car, gasoline golf sightseeing car, is the environmental protection type passenger vehicle specially designed and developed for golf course, and can also be used in resort, villa area, garden type hotel, tourist attraction and so on, from golf course, villa, hotel, school to private user, will be short distance transport tool.

[0003] At present, the patent with the announcement number CN215883231U discloses a rear axle spring damping structure of electric vehicle, including automobile rear axle shell, automobile rear axle pipe and damping buffer piece installed on automobile rear axle pipe, one end of transverse stabilizing support rod is rotatably connected on automobile rear axle pipe through pivot, when automobile body passes through pitted road surface, the body will vibrate up and down, damping buffer piece can reduce the vibration of the body, the body will sway up and down through fixed part to drive transverse stabilizing support rod to sway up and down away from the other end of pivot, because the other end of transverse stabilizing support rod is connected with automobile rear axle pipe through pivot, the movement path of the end of stabilizing support rod away from pivot is arc, and the path of fixed part moving in the process of body vibration is up and down, therefore, the transverse stabilizing support rod will pull the body to make the body gradually stable in the process of body vibration, thereby providing a rear axle spring damping structure of electric vehicle with good vehicle stability.

[0004] The rear axle spring damping structure of electric vehicle has some problems in use, the rear axle pipe is an important component for bearing the weight of vehicle and the impact force of road surface, the installation groove for damping buffer piece is arranged on the surface of rear axle pipe, and the cross section of pipe is reduced at the position of groove, which will inevitably reduce the structural strength of rear axle pipe. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a rear axle damping device to solve the problems in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme.

[0007] A rear axle damping device, including rear axle body, the upper sides of the rear axle body are provided with leaf springs, the two ends of the two groups of leaf springs are provided with mounting holes for connecting frame, the middle parts of the two groups of leaf springs are fixedly installed on the corresponding upper sides of the rear axle body through clamping assemblies, and the lateral surfaces of the middle parts of the rear axle body are connected with lateral damping assemblies for damping the frame laterally to improve the comfort of passengers.

[0008] The clamping assembly comprises first semicircular clamping rings respectively mounted at the center of the bottom of the two groups of leaf springs through connecting pieces, the two groups of first semicircular clamping rings are clamped on the upper surface of the rear axle body, the lower surface of the rear axle body is clamped with second semicircular clamping rings at positions corresponding to each group of first clamping rings, the first clamping ring and the second clamping ring on the same side are connected together through detachable fixing pieces, and the bottom of both ends of the rear axle body is provided with a limiting assembly for preventing the second semicircular clamping ring from moving.

[0009] As a preferred technical scheme, the lateral shock absorption assembly comprises mounting brackets respectively mounted on the top of both sides of the middle part of the rear axle body, the inner cavities of the two groups of mounting brackets are rotationally connected with hydraulic shock absorbers, and the other ends of the two groups of hydraulic shock absorbers are upwardly inclined and connected together with the vehicle frame.

[0010] As a preferred technical scheme, the connecting piece comprises a connecting plate provided at the center of the top of the leaf spring, the two sides of the connecting plate are fixedly provided with fixing rings, the middle parts of the two groups of fixing rings are inserted with connecting screws, the two groups of connecting screws on the same side are respectively fixedly connected to the top of the corresponding side of the first semicircular clamping ring at the corresponding position, the end of the connecting screw above the fixing ring is threadedly connected with a connecting nut, the two groups of connecting nuts are respectively abutted to the top surface of the corresponding fixing ring, and the center of the top of the leaf spring is provided with a deviation preventing assembly for preventing the connecting plate from deviating.

[0011] As a preferred technical scheme, the detachable fixing piece comprises connecting pieces respectively fixedly connected to the two ends of the first semicircular clamping ring and the second semicircular clamping ring, the middle parts of the four groups of connecting pieces are provided with through holes, the inner cavities of the through holes below are inserted with bolts, one end of each group of bolts is upwardly inserted through the inner cavity of the through hole at the corresponding position above, one end of each group of bolts is threadedly connected with a nut, the bottom of each group of nuts is in contact with the top surface of the connecting piece at the corresponding position, and the end surface of the bolt above each group of nuts is clamped with a clamping spring.

[0012] As a preferred technical scheme, the limiting assembly comprises fixed screws respectively fixedly connected to the center of the bottom of each group of leaf springs, the bottom surfaces of the two groups of second semicircular clamping rings are provided with fixed blocks, the tops of the two groups of fixed blocks are provided with arc-shaped grooves corresponding to the bottom surfaces of the leaf springs, one end of each group of fixed screws is sequentially downwardly inserted through the corresponding side second semicircular clamping ring and the fixed block, one end of the fixed screw outside the fixed block is threadedly connected with a fixed nut, and the top of each group of fixed nuts is in contact with the bottom surface of the corresponding side fixed block.

[0013] As a preferred technical scheme, the anti-deviation assembly comprises a circular hole formed at the center of each connecting plate, and the inner cavity of each circular hole is inserted with a positioning column, and the bottoms of the two positioning columns are fixedly connected to the top center of the corresponding side plate spring.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The utility model discloses a set of clamping assembly, can firmly fix the plate spring on the corresponding side upper portion of rear axle body, ensure the stability of the connection between the plate spring and the rear axle, make the plate spring not easily displace, fall off even if facing the violent jolt, vibration of complex road condition in the running process of vehicle, guarantee the reliability of the whole chassis structure, and do not need to groove on the surface of rear axle body, do not affect the structural strength of rear axle body.

[0016] The utility model discloses a set of clamping assembly, can firmly fix the plate spring on the corresponding side upper portion of rear axle body, ensure the stability of the connection between the plate spring and the rear axle, make the plate spring not easily displace, fall off even if facing the violent jolt, vibration of complex road condition in the running process of vehicle, guarantee the reliability of the whole chassis structure, and do not need to groove on the surface of rear axle body, do not affect the structural strength of rear axle body.

[0017] The utility model discloses a set of clamping assembly, can firmly fix the plate spring on the corresponding side upper portion of rear axle body, ensure the stability of the connection between the plate spring and the rear axle, make the plate spring not easily displace, fall off even if facing the violent jolt, vibration of complex road condition in the running process of vehicle, guarantee the reliability of the whole chassis structure, and do not need to groove on the surface of rear axle body, do not affect the structural strength of rear axle body. ACCURACY OF DRAWINGS

[0018] Fig. 1 It is a structure schematic view of the rear axle shock absorber of the utility model;

[0019] Fig. 2 It is a structure schematic view of the bolt of the utility model;

[0020] Fig. 3 It is a structure schematic view of the connecting plate of the utility model.

[0021] In the drawing:

[0022] 100, rear axle body; 101, plate spring; 102, mounting hole;

[0023] 200, first semicircle clamping ring; 201, second semicircle clamping ring; 202, bolt; 203, nut; 204, clamping spring; 205, connecting piece; 206, through hole;

[0024] 300, connecting plate; 301, fixed ring; 302, connecting nut; 303, connecting screw; 304, positioning column; 305, circular hole;

[0025] 400, mounting frame; 401, hydraulic shock absorber;

[0026] 500, fixing nut; 501, fixing screw; 502, fixing block; 503, arc-shaped groove. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0028] Please refer to Figs. 1-3 The embodiment provides a rear axle damping device, which comprises a rear axle body 100, plate springs 101 are arranged on the upper sides of the rear axle body 100, mounting holes 102 for connecting a vehicle frame are formed in the two ends of the two groups of plate springs 101, the middle parts of the two groups of plate springs 101 are fixedly installed on the corresponding upper sides of the rear axle body 100 through clamping assemblies, and lateral damping assemblies for damping the vehicle frame laterally so as to improve the comfort of passengers are connected to the surfaces on the two sides of the middle part of the rear axle body 100.

[0029] The clamping assembly comprises first semicircular clamping rings 200 which are respectively installed at the bottom center parts of the two groups of plate springs 101 through connecting pieces, the two groups of first semicircular clamping rings 200 are clamped on the upper surfaces of the rear axle body 100, second semicircular clamping rings 201 are clamped on the lower surfaces of the rear axle body 100 and located at the corresponding positions of each group of first clamping rings, the first clamping ring and the second clamping ring on the same side are connected together through a detachable fixing piece, and the bottom ends of the two ends of the rear axle body 100 are provided with limiting assemblies for preventing the second semicircular clamping ring 201 from moving. Through the arrangement of the clamping assembly, the plate spring 101 can be fixed firmly on the corresponding upper side of the rear axle body 100, the stability of the connection between the plate spring 101 and the rear axle is ensured, the plate spring 101 will not be easily displaced or fallen off even if the vehicle encounters severe bumps and vibrations caused by complex road conditions during driving, the reliability of the entire chassis structure is ensured, and at the same time, the surface of the rear axle body 100 does not need to be slotted, so that the structural strength of the rear axle body 100 is not affected.

[0030] The specific structure and working principle of the rear axle body 100 are well-known technical means to those skilled in the art, and specific reference can be made to the electric vehicle rear axle body in the damping electric vehicle rear axle with the publication number CN216733763U, and the rest will not be described here.

[0031] The lateral damping assembly comprises two mounting racks 400 mounted on the top of the middle part of the rear axle body 100, the inner cavities of the two mounting racks 400 are rotationally connected with hydraulic dampers 401, the other ends of the two hydraulic dampers 401 are upwardly inclined and connected with the frame, through the arrangement of the lateral damping assembly, the inner cavities of the mounting racks 400 are rotationally connected with the hydraulic dampers 401, and the other ends of the hydraulic dampers 401 are upwardly inclined and connected with the frame, so that the dampers can better adapt to the movement of the frame during vehicle driving, effectively absorb and dissipate the impact force from the road, especially when the vehicle turns, brakes or encounters uneven road, more accurate and effective lateral damping effect can be provided, and the riding comfort is further improved.

[0032] The connecting piece comprises a connecting plate 300 arranged at the top center of the leaf spring 101, the two sides of the connecting plate 300 are fixedly provided with fixing rings 301, the middle parts of the two fixing rings 301 are inserted with connecting screws 303, the two connecting screws 303 on the same side are fixedly connected to the top of the corresponding side of the first semicircular clamping ring 200, the end portions of the connecting screws 303 above the fixing rings 301 are threadedly connected with connecting nuts 302, the two connecting nuts 302 are respectively abutted against the top surfaces of the corresponding fixing rings 301, and the top center of the leaf spring 101 is provided with a deviation prevention assembly for preventing the deviation of the connecting plate 300. Through the arrangement of the connecting piece, the connection between the leaf spring 101 and the first semicircular clamping ring 200 is more firm, can withstand the relatively large force and vibration generated during vehicle driving, prevents the loosening or displacement between the leaf spring 101 and the semicircular clamping ring, and thus the stability and reliability of the connection between the leaf spring 101 and the rear axle are ensured.

[0033] The detachable fixing piece comprises connecting plates 205 fixedly connected to the two ends of the first semicircular clamping ring 200 and the second semicircular clamping ring 201, the middle parts of the four connecting plates 205 are provided with through holes 206, the inner cavities of the lower through holes 206 are inserted with bolts 202, one end of each group of bolts 202 passes through the inner cavities of the upper corresponding position through holes 206, one end of each group of bolts 202 is threadedly connected with a nut 203, the bottom of each group of nuts 203 is in contact with the top surface of the corresponding connecting plate 205, and the end surface of the bolt 202 above each group of nuts 203 is clamped with a clamping spring 204. Through the arrangement of the detachable fixing piece, the first semicircular clamping ring 200 and the second semicircular clamping ring 201 are connected, the first semicircular clamping ring 200 and the second semicircular clamping ring 201 are tightly fitted by tightening the nuts 203, the clamping spring 204 prevents the loosening of the nuts 203, the detachable connection mode facilitates the installation, disassembly and maintenance of the clamping assembly, and the working efficiency is improved.

[0034] The limiting assembly comprises fixed screw rods 501 fixedly connected to the center of the bottom of each group of leaf springs 101, the bottom surface of each group of second half circular clamping rings 201 is provided with a fixed block 502, the top of each group of fixed blocks 502 is provided with an arc-shaped groove 503 corresponding to the bottom surface of the leaf spring 101, one end of each group of fixed screw rods 501 is sequentially threaded downwards through the corresponding side second half circular clamping ring 201 and the fixed block 502, one end of the fixed screw rod 501 located outside the fixed block 502 is threadedly connected with a fixed nut 500, the top of each group of fixed nuts 500 is in contact with the bottom surface of the corresponding side fixed block 502, the setting of the limiting assembly can effectively prevent the second half circular clamping ring 201 from moving during vehicle driving, thereby ensuring the stability and reliability of the clamping assembly, and further ensuring the firmness of the connection between the leaf spring 101 and the rear axle, and reducing the safety hazards caused by the movement of the clamping ring.

[0035] The anti-deviation assembly comprises a circular hole 305 arranged in the center of each group of connecting plates 300, and a positioning column 304 inserted into the inner cavity of each group of circular holes 305, and the bottom of each group of positioning columns 304 is fixedly connected to the top center of the corresponding side leaf spring 101, and through the setting of the anti-deviation assembly, the circular hole 305 is inserted into the positioning column 304, which can effectively prevent the connecting plate 300 from moving under the working conditions of vehicle vibration, acceleration and deceleration, thereby ensuring the stability of the connection between the leaf spring 101 and the connecting piece.

[0036] Working principle;

[0037] First, the two groups of second half circular clamping rings 201 are clamped on the bottom of the rear axle body 100 on both sides, and the fixed screw rod 501 at the bottom passes through the second half circular clamping ring 201, then the fixed block 502 is taken out, the arc-shaped groove 503 in the inner cavity of the top of the fixed block 502 is fitted with the bottom of the second half circular ring, and the fixed block 502 is locked by threadedly connecting the fixed bolt 202 with the end of the fixed screw rod 501, so as to fix the second half circular clamping ring 201 and prevent the second half circular clamping ring 201 from deviating;

[0038] At this time, the two groups of first half circular clamping rings 200 are taken out and clamped on the surface of the rear axle body 100, and are aligned with the corresponding side second half circular clamping ring 201, the through hole 206 on the connecting piece 205 at both ends of the second half circular clamping ring 201 is inserted into the bolt 202, the bolt 202 is tightened with the nut 203 after passing through the upper through hole 206, the bottom of the nut 203 is in contact with the top surface of the connecting piece 205, and the bolt 202 end is also clamped with the circlip 204, so as to tightly combine the first half circular clamping ring 200 and the second half circular clamping ring 201 on the same side;

[0039] Then, two sets of leaf springs 101 are taken out and placed on the top of the two sets of first semicircular clasp rings 200, and the connecting plate 300 is taken out, the inner cavities of the two sets of fixing rings 301 of the connecting plate 300 are respectively aligned with the connecting screw rods 303 at the corresponding side positions, and the connecting plate 300 is pushed down to make the bottom surface of the connecting plate 300 adhere to the top center of the leaf spring 101, at the same time, the two sets of connecting screw rods 303 at the same side respectively pass through the inner cavities of the fixing rings 301 at the corresponding positions, and the positioning column 304 at the top center of the leaf spring 101 is inserted into the middle circular hole 305 of the connecting plate 300, then the end of each set of connecting screw rods 303 is threadedly connected with the connecting nut 302 to fix the leaf spring 101, then the two ends of the two sets of leaf springs 101 are connected with the frame through the mounting holes 102, and finally the other end of the two sets of hydraulic shock absorbers 401 is connected with the frame.

[0040] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A rear axle shock absorbing device, characterized by, The application relates to a rear axle body (100), plate springs (101) are arranged on the two sides of the rear axle body (100), mounting holes (102) for connecting a vehicle frame are formed in the two ends of the two groups of plate springs (101), the middle portions of the two groups of plate springs (101) are fixedly installed on the corresponding sides of the upper portions of the rear axle body (100) through clamping assemblies, and lateral damping assemblies for damping the lateral sides of the vehicle frame are connected to the lateral side surfaces of the middle portion of the rear axle body (100) so as to improve the comfort of passengers. The clamping assemblies comprise first semicircular clamping rings (200) which are respectively installed at the bottom centers of the two groups of plate springs (101) through connecting pieces, the two groups of first semicircular clamping rings (200) are respectively clamped on the upper surfaces of the rear axle body (100), second semicircular clamping rings (201) are clamped on the lower surfaces of the rear axle body (100) and located at the corresponding positions of each group of first clamping rings, the first clamping ring and the second clamping ring on the same side are connected together through detachable fixing pieces, and the bottom ends of the two ends of the rear axle body (100) are provided with limiting assemblies for preventing the second semicircular clamping rings (201) from moving.

2. A rear axle shock absorber as set forth in claim 1 wherein: The lateral damping assemblies comprise mounting racks (400) which are respectively installed at the top portions of the two sides of the middle portion of the rear axle body (100), the inner cavities of the two groups of mounting racks (400) are rotatably connected with hydraulic dampers (401), and the other ends of the two groups of hydraulic dampers (401) are upwardly inclined and connected with the vehicle frame.

3. The rear axle shock absorber of claim 1 wherein: The connecting pieces comprise connecting plates (300) which are arranged at the top centers of the plate springs (101), the two sides of the connecting plates (300) are fixedly installed with fixing rings (301), the middle portions of the two groups of fixing rings (301) are inserted with connecting screw rods (303), the two groups of connecting screw rods (303) on the same side are respectively fixedly connected with the top portions of the corresponding first semicircular clamping rings (200) at the corresponding positions, the end portions of the connecting screw rods (303) above the fixing rings (301) are threadedly connected with connecting nuts (302), the two groups of connecting nuts (302) are respectively abutted against the top surfaces of the corresponding fixing rings (301), and the top centers of the plate springs (101) are provided with anti-deviation assemblies for preventing the connecting plates (300) from deviating.

4. A rear axle shock absorber as set forth in claim 3 wherein: The detachable fixing pieces comprise connecting pieces (205) which are respectively fixedly connected with the two ends of the first semicircular clamping rings (200) and the second semicircular clamping rings (201), the middle portions of the four groups of connecting pieces (205) are provided with penetrating holes (206), the inner cavities of the penetrating holes (206) below are inserted with bolts (202), one end of each group of bolts (202) penetrates through the inner cavities of the penetrating holes (206) above, one end of each group of bolts (202) is threadedly connected with a nut (203), the bottom portions of each group of nuts (203) are in contact with the top surfaces of the corresponding connecting pieces (205), and the end portion surfaces of the bolts (202) above each group of nuts (203) are clamped with clamping springs (204).

5. A rear axle shock absorbing device as set forth in claim 4 wherein: The limiting assembly includes fixed screw rods (501) fixedly connected to the bottom center of each group of leaf springs (101) respectively, the bottom surfaces of the two groups of second half circular clamping rings (201) are provided with fixed blocks (502), the top of the two groups of fixed blocks (502) are provided with arc-shaped grooves (503) corresponding to the bottom surface of the leaf spring (101), one end of the two groups of fixed screw rods (501) respectively passes through the corresponding side second half circular clamping ring (201) and the fixed block (502) in sequence, the end of the fixed screw rod (501) located outside the fixed block (502) is respectively threadedly connected with a fixed nut (500), and the top of the two groups of fixed nuts (500) respectively contacts the bottom surface of the corresponding side fixed block (502).

6. A rear axle shock absorber assembly as set forth in claim 5 wherein: The anti-deviation assembly includes a circular hole (305) opened at the center of each group of connecting plates (300), the inner cavity of each group of circular holes (305) is inserted with a positioning column (304), and the bottom of the two groups of positioning columns (304) is fixedly connected to the top center of the corresponding side leaf spring (101).

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