Rear wheel suspension device of road roller

Abstract

The utility model relates to the technical field of vehicle suspension, in particular to a rear wheel suspension device of a road roller, which comprises U-shaped clamps, rear wheel mechanisms are arranged in the U-shaped clamps, the U-shaped clamps penetrate through clamping plates and then are fixedly provided with locking nuts, and plate springs are fixedly arranged at the top ends of the clamping plates and located between the U-shaped clamps. The rear wheel mechanism comprises a transmission box, a belt pulley is movably mounted at one end of the transmission box, a U-shaped clamp is fixedly mounted at the top end of the transmission box, a cushion block is fixedly mounted between the U-shaped clamps, fixing hoops are fixedly mounted on the two sides, away from the cushion block, of the plate spring, and rotating clamps are movably mounted at the two ends, away from the fixing hoops, of the plate spring. The pressure of the damping structure is reduced by additionally arranging the spring, so that the suspension stability of the rear wheels is ensured when the road roller generates a large amount of vibration during operation, the structure is prevented from being damaged, the plate spring is matched with the spring to quickly reset the wheels, and meanwhile, the hydraulic rod is matched with stretching in the hydraulic cylinder for damping; therefore, the rear wheels of the road roller are kept stable during running, and the front-end pinch roller is prevented from being unbalanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle suspension technical field, concretely is a road roller rear wheel suspension device. BACKGROUND

[0002] The road roller rear wheel suspension device is a flexible support system connecting the machine body and the rear wheel, mainly composed of a connecting mechanism, a damping element and an adjusting device. Its core function is to absorb the impact load during operation through elastic elements (such as hydraulic cylinders, rubber bumpers or springs), to disperse the dynamic pressure of the wheel body on the ground, while maintaining the continuous contact of the compaction wheel with the ground, and to ensure the uniformity of compaction.

[0003] However, most of the existing road roller rear wheel suspension devices are integral bridge non-independent suspension structures. Such structures have high stability, but in actual application, they usually use shock absorbers without rebound in combination with plate spring rebound. The shock absorber is responsible for absorbing vibration during operation, the plate spring is responsible for softening vibration, shock absorber reset and wheel reset. However, the long-term vibration generated during the operation of the road roller will increase the operating frequency of the shock absorber, making the operating pressure larger, so long-term use or in poor road conditions will easily cause damage to the overall structure. SUMMARY

[0004] The utility model aims at providing a road roller rear wheel suspension device to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A road roller rear wheel suspension device, comprising a U-shaped clamp, a rear wheel mechanism is arranged in the U-shaped clamp, a locking nut is fixedly installed after the U-shaped clamp penetrates through a clamping plate, a plate spring is fixedly installed between the U-shaped clamps at the top end of the clamping plate, a pad is fixedly installed between the U-shaped clamps at the top end of the plate spring, fixed hoops are fixedly installed on both sides of the plate spring away from the pad, rotating clamps are movably installed at both ends of the plate spring away from the fixed hoops, and the rear wheel mechanism comprises a transmission box.

[0007] Preferably, the rear wheel mechanism further comprises a transmission frame, U-shaped clamps are fixedly installed on both sides of the transmission frame away from the transmission box, and pads are fixedly installed on one side of the transmission frame close to the U-shaped clamps.

[0008] Preferably, fixed blocks are fixedly installed on one side of the transmission frame close to the U-shaped clamps, rotating grooves are formed in the fixed blocks, rotating blocks are movably installed in the rotating grooves, and hydraulic cylinders are fixedly installed at the top end of the rotating blocks.

[0009] Preferably, the hydraulic cylinder is provided with screw threads outside, an adjusting block is screw-mounted on the screw threads, a spring is movably mounted at the top end of the adjusting block, and a cover is fixedly mounted at the top end of the spring.

[0010] Preferably, the cover is fixedly mounted with a connecting block at the top end, and the cover is screw-mounted on the top end of a hydraulic rod away from the connecting block.

[0011] Preferably, the transmission frame is fixedly mounted with a brake disc on the side close to the fixed block, the brake disc is movably mounted with a rotating disc outside, and the rotating disc is fixedly mounted with an assembling screw rod.

[0012] 1. The rear wheel suspension device of the road roller, by additionally arranging a spring on the damping structure, the pressure of the damping structure is reduced, so that the stability of the rear wheel suspension can be ensured when the road roller runs with a large amount of vibration, and the structure damage is avoided.

[0013] 2. The rear wheel suspension device of the road roller, the leaf spring cooperates with the spring to quickly reset the wheel, and cooperates with the hydraulic rod to stretch and retract in the hydraulic cylinder to damp, so that the rear wheel of the road roller keeps stable when driving, and the front end pressure wheel is not unbalanced. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic view of the utility model;

[0015] Figure 2 It is a structure schematic view of the transmission box of the utility model;

[0016] Figure 3 It is a structure schematic view of the hydraulic cylinder of the utility model;

[0017] Figure 4 It is a structure schematic view of the leaf spring of the utility model.

[0018] In the drawing: 101, U-shaped clamp; 102, rear wheel mechanism; 103, locking nut; 104, clamping plate; 105, leaf spring; 106, cushion block; 201, fixed hoop; 202, rotating clamp; 203, transmission box; 204, belt disc; 205, transmission frame; 206, fixed block; 301, rotating groove; 302, rotating block; 303, hydraulic cylinder; 304, screw thread; 305, adjusting block; 306, spring; 401, cover; 402, connecting block; 403, hydraulic rod; 404, brake disc; 405, rotating disc; 406, assembling screw rod. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0020] Please refer to Figures 1-4 The technical scheme provided by the present application comprises:

[0021] The rear wheel suspension device of the road roller comprises a U-shaped clamp 101, a rear wheel mechanism 102 is arranged in the U-shaped clamp 101, a locking nut 103 is fixedly installed on the U-shaped clamp 101 in a penetrating mode, a plate spring 105 is fixedly installed at the top end of the clamping plate 104 between the U-shaped clamps 101, a pad 106 is fixedly installed at the top end of the plate spring 105 between the U-shaped clamps 101, a fixing hoop 201 is fixedly installed on the two sides of the plate spring 105 away from the pad 106, a rotating clamp 202 is movably installed at the two ends of the plate spring 105 away from the fixing hoop 201, and the rear wheel mechanism 102 comprises a transmission box 203.

[0022] Through the above scheme, the U-shaped clamp can be fixed through the locking nut, the plate spring structure can be fixed on the transmission frame through the U-shaped clamp, the vibration can be softened through the elastic movement of the plate spring, the wheel can be reset, the plate spring structure and the transmission frame can be more closely connected through the pad, the stability of the plate spring can be ensured through the fixing hoop, the plate spring can be kept rotating during work through the rotating clamp, the plate spring structure is prevented from being damaged due to limiting, power transmission and distribution can be realized through the transmission box, and the transmission box can be driven to work through the belt pulley and the power device.

[0023] In the embodiment, preferably, the rear wheel mechanism 102 further comprises a transmission frame 205, the U-shaped clamps 101 are fixedly installed on the two sides of the transmission frame 205 away from the transmission box 203, and the pad 106 is fixedly installed on one side of the transmission frame 205 close to the U-shaped clamps 101.

[0024] Through the above scheme, the transmission can be realized through the transmission frame, and the installation support of the assembly can be realized, and the installation of the U-shaped clamp and the transmission frame can be more stable through the pad.

[0025] In the embodiment, preferably, the transmission frame 205 is fixedly installed with a fixing block 206 on one side close to the U-shaped clamps 101, a rotating groove 301 is formed in the fixing block 206, a rotating block 302 is movably installed in the rotating groove 301, and a hydraulic cylinder 303 is fixedly installed at the top end of the rotating block 302.

[0026] Through the above scheme, the damping structure can be supported by the fixed block, the rotating block can be installed by the rotating groove, and the damping structure can be rotated by rotating the rotating block in the rotating groove, thereby avoiding limiting.

[0027] In this embodiment, preferably, the hydraulic cylinder 303 is provided with a screw thread 304 outside, the screw thread 304 is screw-mounted with an adjusting block 305, the adjusting block 305 is movably mounted with a spring 306 at the top end, and the spring 306 is fixedly mounted with a cover 401 at the top end.

[0028] Through the above scheme, the adjusting block can be adjusted by the screw thread, the spring can be tightened by adjusting the adjusting block, and the spring can be limited by the cover.

[0029] In this embodiment, preferably, the cover 401 is fixedly mounted with a connecting block 402 at the top end, the cover 401 is screw-mounted on the top end of a hydraulic rod 403 away from the connecting block 402, and the hydraulic rod 403 is movably mounted inside the hydraulic cylinder 303 at the bottom end.

[0030] Through the above scheme, the whole damping structure can be connected with the road roller chassis by the connecting block, the vibration force can be transmitted on the hydraulic rod by the connection of the cover and the hydraulic rod, the hydraulic rod can be extended and retracted in the hydraulic cylinder, and the vibration force can be quickly absorbed by the oil pressure in the hydraulic cylinder.

[0031] In this embodiment, preferably, the transmission frame 205 is fixedly mounted with a brake disc 404 on the side close to the fixed block 206, the brake disc 404 is movably mounted with a rotating disc 405 outside, and the rotating disc 405 is fixedly mounted with an assembly screw rod 406.

[0032] Through the above scheme, the rotating disc can be stopped by the brake disc, the wheel can be rotated by rotating the rotating disc, and the wheel can be fixed after installation by the assembly screw rod.

[0033] The rear wheel suspension device of the road roller is connected with the chassis of the road roller by the rotating clamp 202 and the connecting block 402, and then the belt pulley 204 is connected with the power device of the road roller by a belt, and then the wheel is installed on the rotating disc 405 and fixed by the assembling screw 406, and when the road roller is started, the power device of the road roller drives the belt pulley 204 to rotate, so that the belt pulley 204 drives the transmission box 203 to rotate, the transmission box 203 has a bevel gear set and is connected with the transmission shaft in the transmission frame 205, so that the transmission shaft in the transmission frame 205 can drive the rotating disc 405 to rotate, and the wheel is lifted by the obstacle when the road roller passes through the uneven road, so that the transmission frame 205 drives the U-shaped clamp 101 to rise, so that the clamping plate 104 drives the leaf spring 105 to rise, the leaf spring 105 is stressed to rebound, so that the wheel is quickly reset, and at the same time, the transmission frame 205 drives the fixed block 206 to rise, so that the hydraulic rod 403 is retracted in the hydraulic cylinder 303, and the spring 306 is compressed between the cover 401 and the adjusting block 305 when the hydraulic column is retracted, the spring 306 is rebounded after compression, and the oil pressure in the hydraulic cylinder 303 drives the hydraulic rod 403 to reset, so that the vibration force during bumping is absorbed, thereby reducing the bumping feeling of the road roller, and the overall structure is provided with a group of springs 306 on the hydraulic cylinder 303, which cooperates with the leaf spring 105 to make the overall rebound force larger, thereby reducing the pressure of the damping structure, and thereby making the overall bearing force stronger.

[0034] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and do not limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A rear wheel suspension for a road roller, characterized by: Including U type clamp (101), be provided with rear wheel mechanism (102) in U type clamp (101), U type clamp (101) is fixedly installed with locking nut (103) through clamping plate (104), clamping plate (104) top end is fixedly installed between U type clamp (101) plate spring (105), plate spring (105) top end is fixedly installed between U type clamp (101) pad (106), plate spring (105) is fixedly installed with fixed hoop (201) on both sides away from pad (106), plate spring (105) is movably installed rotating clamp (202) on both ends away from fixed hoop (201), rear wheel mechanism (102) includes transmission box (203), transmission box (203) one end movably installed with belt disc (204).

2. A rear wheel suspension for a road roller according to claim 1, wherein: The rear wheel mechanism (102) further comprises a transmission frame (205), the transmission frame (205) is fixedly installed with a U-shaped clamp (101) on both sides away from the transmission box (203), and the transmission frame (205) is fixedly installed with a pad (106) on one side close to the U-shaped clamp (101).

3. A roller rear wheel suspension as claimed in claim 2, wherein: The transmission frame (205) is fixedly installed with a fixed block (206) on one side close to the U-shaped clamp (101), a rotating groove (301) is formed in the fixed block (206), and a rotating block (302) is movably installed in the rotating groove (301).

4. A roller rear wheel suspension as claimed in claim 3, wherein: A screw thread (304) is arranged outside the hydraulic cylinder (303), an adjusting block (305) is screwedly installed on the screw thread (304), a spring (306) is movably installed on the top end of the adjusting block (305), and a cover (401) is fixedly installed on the top end of the spring (306).

5. A roller rear wheel suspension as claimed in claim 4, wherein: The cover (401) is fixedly installed with a connecting block (402), and the cover (401) is screwedly installed on the top end of a hydraulic rod (403) on one side away from the connecting block (402). The bottom end of the hydraulic rod (403) is movably installed in the hydraulic cylinder (303).

6. A roller rear wheel suspension as claimed in claim 5, wherein: The transmission frame (205) is fixedly installed with a brake disc (404) on one side close to the fixed block (206), the brake disc (404) is movably installed with a rotating disc (405) outside, and the rotating disc (405) is fixedly installed with an assembly screw rod (406).

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