Self-adjusting crane explosion-proof wheel set

Abstract

The utility model belongs to the technical field of cranes, and particularly relates to a self-adjusting crane explosion-proof wheel set which comprises a frame and walking wheel sets arranged at the positions, close to four corners, of the lower surface of the frame, the four walking wheel sets are arranged on the lower surface of the frame in a bilateral symmetry mode, and each walking wheel set comprises a mounting box fixedly connected with the frame; wheel axles are rotationally connected to the left side face and the right side face of the mounting box body, walking wheels are arranged on the wheel axles, a damping mechanism is arranged between the mounting box body and the wheel axles and comprises a damping assembly A and a damping assembly B. The damping assembly A is arranged between the top end face of the mounting box body and the wheel axles, and the damping assembly B is arranged between the top end face of the mounting box body and the wheel axles. The damping assemblies B are arranged between side plates on the left side and the right side of the mounting box body and wheel shafts, the two walking wheel sets in front of the frame are driving walking wheel sets, and the double-output-shaft speed reducer is fixed to the lower surface of the frame and connected with the walking motor; operation is stable, and the damping effect is good.

Description

Technical Field

[0001] The invention belongs to the technical field of cranes, and in particular relates to a self-adjusting explosion-proof wheel set for a crane. Background Art

[0002] Cranes refer to multi-action lifting machinery that can lift and carry heavy objects vertically and horizontally within a certain range. Cranes are suitable for maintenance and loading and unloading work in machinery workshops, warehouses, material yards, and hydropower stations with medium and light working conditions. They are lifting equipment that is widely used in China. Crane tires may burst when driving on bumpy roads for a long time. In order to increase the service life of crane tires, explosion-proof wheel sets are usually used to protect the tires.

[0003] Large cranes lift heavy materials when working, which puts great pressure on the wheels of the cranes. If the cranes encounter bumpy roads while moving, they will be subjected to great impact force. However, the existing explosion-proof wheel groups have poor shock absorption effect, which may affect the stability of the wheel group's operation and its service life. Summary of the invention

[0004] The purpose of the present invention is to provide a self-adjusting explosion-proof wheel set for a crane in view of the deficiencies in the prior art, which has stable operation and good shock absorption effect.

[0005] The objective of the present invention is achieved as follows: a self-adjusting explosion-proof wheel group of a crane comprises a frame and a walking wheel group arranged at four corner positions on the lower surface of the frame, the four walking wheel groups are arranged symmetrically on the left and right sides of the lower surface of the frame, the walking wheel group comprises a mounting box fixedly connected to the frame, wheel axles are rotatably connected on the left and right side surfaces of the mounting box, walking wheels are arranged on the wheel axles, a shock absorbing mechanism is arranged between the mounting box and the wheel axles, the shock absorbing mechanism comprises a shock absorbing assembly A and a shock absorbing assembly B, the shock absorbing assembly A is arranged between the top surface of the mounting box and the wheel axle, the shock absorbing assembly B is arranged between the side plates on the left and right sides of the mounting box and the wheel axle, the two walking wheel groups in front of the frame are active walking wheel groups, the wheel axles on the two active walking wheel groups are respectively connected to the two output shafts of a dual output shaft reducer, the dual output shaft reducer is fixed to the lower surface of the frame and is connected to the walking motor, and the two walking wheel groups at the rear of the frame are driven walking wheel groups.

[0006] Furthermore, the shock absorbing assembly A includes a damping rod, the top end of which is connected to the top surface of the mounting box, and the bottom end of which is rotatably connected to the wheel axle. When the traveling wheel assembly runs on a bumpy road section, the energy generated by the traveling wheel can be gradually absorbed by the damping rod, thereby achieving the purpose of shock absorption.

[0007] Furthermore, the damping rod is an adjustable damping rod, and the resistance of the damping rod can be adjusted as needed to achieve the desired shock-absorbing effect.

[0008] Furthermore, the shock absorbing assembly B includes a fixed outer ring fixedly connected to the side of the mounting box, a fixed inner ring is arranged at the center of the fixed outer ring, the fixed inner ring is rotationally connected to the wheel axle, and an elastic mechanism is arranged between the fixed outer ring and the fixed inner ring. The elastic mechanism can buffer the vibration of the walking wheel and gradually absorb the energy generated by the vibration of the walking wheel, thereby achieving the purpose of shock absorption and buffering the vibration of the wheel axle relative to the mounting box.

[0009] Furthermore, the elastic mechanism includes a guide outer sleeve fixed to the inner surface of the fixed outer ring, a guide inner sleeve is slidably connected inside the guide outer sleeve, the other end of the guide inner sleeve is fixedly connected to the outer surface of the fixed inner ring, and a shock-absorbing spring is arranged between the guide inner sleeve and the guide outer sleeve. During the process in which the wheel axle vibrates relative to the mounting box together with the traveling wheel, the corresponding shock-absorbing spring continuously expands and contracts, and the energy generated by the vibration of the traveling wheel is gradually absorbed through the expansion and contraction of the shock-absorbing spring to achieve the purpose of shock absorption.

[0010] Furthermore, a synchronization component is connected between the active running wheel set and the driven running wheel set on the same side, and the synchronization component can ensure that the active running wheel set and the driven running wheel set keep rolling synchronously.

[0011] Furthermore, the synchronization component includes a driving bevel gear and a driven bevel gear with the same structural size, the driving bevel gear and the driven bevel gear are respectively fixed on the wheel axles of the driving walking wheel group and the driven walking wheel group, the driving bevel gear and the driven bevel gear are respectively meshed and connected with a transmission bevel gear A and a transmission bevel gear B, the transmission bevel gear A and the transmission bevel gear B are respectively fixed to the two ends of the transmission shaft, the driving bevel gear and the driven bevel gear are respectively located on the left and right sides of the transmission shaft, the two ends of the transmission shaft are rotatably connected to the side of the mounting box, the wheel axle of the driving walking wheel group drives the transmission shaft to rotate through the meshing connection between the driving bevel gear and the transmission bevel gear A, and then the transmission shaft drives the wheel axle of the driven walking wheel group to rotate synchronously through the meshing connection between the transmission bevel gear B and the driven bevel gear, thereby ensuring that the driving walking wheel group and the driven walking wheel group rotate and roll synchronously.

[0012] Furthermore, the running wheels in the running wheel set are self-adjusting explosion-proof safety wheels.

[0013] Beneficial effects of the present invention:

[0014] 1. The two active running wheel groups in the present invention are respectively connected to the two output shafts of the dual-output shaft reducer, so as to ensure that the left and right sides of the frame can move synchronously and prevent the frame from deflecting during movement; and the two driven running wheel groups are respectively connected to the active running wheel groups on the same side through synchronization components, so as to ensure that the driven running wheel groups can keep synchronization with the rolling of the synchronous running wheel groups, thereby further ensuring the stability of the frame operation.

[0015] 2. The present invention is provided with a shock absorbing mechanism between the mounting box and the wheel axle. When the running wheel set is bumpy, the shock absorbing assembly can buffer the vibration of the frame, thereby maintaining the stable operation of the running wheel set. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments of the present invention or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 The present invention is a structural schematic diagram of a self-adjusting explosion-proof wheel group for a crane.

[0018] Figure 2 The present invention is a schematic diagram of the cross-sectional structure of a traveling wheel group in a self-adjusting explosion-proof wheel group of a crane.

[0019] Figure 3 It is an enlarged structural schematic diagram of A in a self-adjusting explosion-proof wheel group of a crane of the present invention.

[0020] Figure 4 It is a schematic cross-sectional structure diagram of a shock-absorbing component B in a self-adjusting explosion-proof wheel group of a crane according to the present invention.

[0021] Description of reference numerals:

[0022] 1. Frame 2. Mounting box 3. Travel wheel 4. Wheel axle 5. Dual output shaft reducer 6. Transmission shaft 7. Damping rod 8. Active bevel gear / driven bevel gear 9. Transmission bevel gear A / transmission bevel gear B 10. Fixed outer ring 11. Fixed inner ring 12. Guide outer sleeve 13. Guide inner sleeve 14. Shock-absorbing spring. DETAILED DESCRIPTION

[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0024] In the description of the present invention, it is necessary to understand that the terms "length", "width", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0028] In one embodiment of the present invention, Figure 1 and Figure 2As shown, a self-adjusting explosion-proof wheel group of a crane comprises a frame 1 and a traveling wheel group arranged at four corner positions on the lower surface of the frame, the four traveling wheel groups are arranged symmetrically on the lower surface of the frame 1, the traveling wheel group comprises a mounting box 2 fixedly connected to the frame 1, the left and right side surfaces of the mounting box 2 are rotatably connected with a wheel axle 4, the wheel axle 4 is provided with a traveling wheel 3, a shock absorbing mechanism is arranged between the mounting box 2 and the wheel axle 4, the shock absorbing mechanism comprises a shock absorbing component A and a shock absorbing component B, the shock absorbing component A is arranged between the top surface of the mounting box 2 and the wheel axle 4, the shock absorbing component B is arranged between the side plates on the left and right sides of the mounting box 2 and the wheel axle 4, the two traveling wheel groups in front of the frame 1 are active traveling wheel groups, the wheel axles 4 on the two active traveling wheel groups are respectively connected to the two output shafts of a dual-output shaft reducer 5, the dual-output shaft reducer 5 is fixed on the lower surface of the frame and connected to the traveling motor, and the two traveling wheel groups at the rear of the frame 1 are driven traveling wheel groups.

[0029] The two active running wheel groups in the present invention are respectively connected to the two output shafts of the dual-output shaft reducer 5, ensuring that the left and right sides of the frame 1 can move synchronously to prevent the frame 1 from deflecting during the movement; a shock absorbing component A is arranged between the top surface of the mounting box 2 and the wheel axle 4, and a shock absorbing component B is arranged between the side plates on the left and right sides of the mounting box 2 and the wheel axle 4. When the running wheel group is bumpy, the shock absorbing component A and the shock absorbing component B can buffer the vibration of the frame 1, thereby maintaining the stable operation of the running wheel group.

[0030] In one embodiment of the present invention, Figure 2 As shown, the shock absorbing assembly A includes a damping rod 7, the top end of the damping rod 7 is connected to the top surface of the mounting box 2, and the bottom end of the damping rod 7 is rotatably connected to the wheel axle 4. When the traveling wheel assembly runs to a bumpy section, the energy generated by the traveling wheel 3 can be gradually absorbed by the damping rod 7, thereby achieving the purpose of shock absorption.

[0031] In one embodiment of the present invention, Figure 2 As shown, the damping rod 7 is an adjustable damping rod, and the resistance of the damping rod can be adjusted as needed to achieve the desired shock-absorbing effect.

[0032] In one embodiment of the present invention, Figure 3 and Figure 4As shown, the shock absorbing assembly B includes a fixed outer ring 10 fixedly connected to the side of the mounting box 2, a fixed inner ring 11 is arranged at the center of the fixed outer ring 10, the fixed inner ring 11 is rotationally connected to the wheel axle 4, and an elastic mechanism is arranged between the fixed outer ring 10 and the fixed inner ring 11, the elastic mechanism can buffer the vibration of the running wheel 3, and gradually absorb the energy generated by the vibration of the running wheel 3, so as to achieve the purpose of shock absorption, and buffer the vibration of the wheel axle 4 relative to the mounting box.

[0033] In one embodiment of the present invention, Figure 3 and Figure 4 As shown, the elastic mechanism includes a guide outer sleeve 12 fixed on the inner surface of the fixed outer ring 10, and a guide inner sleeve 13 is slidably connected inside the guide outer sleeve 12. The other end of the guide inner sleeve 13 is fixedly connected to the outer surface of the fixed inner ring 11, and a shock-absorbing spring 14 is arranged between the guide inner sleeve 13 and the guide outer sleeve 12. During the vibration of the wheel shaft 4 relative to the mounting box 2 together with the running wheel 3, the corresponding shock-absorbing spring 14 continuously expands and contracts, and the energy generated by the vibration of the running wheel 3 is gradually absorbed by the expansion and contraction of the shock-absorbing spring 14 to achieve the purpose of shock absorption.

[0034] In one embodiment of the present invention, Figure 1 As shown, a synchronization component is connected between the active running wheel set and the driven running wheel set on the same side, and the synchronization component can ensure that the active running wheel set and the driven running wheel set keep rolling synchronously.

[0035] In one embodiment of the present invention, Figure 2 As shown, the synchronization component includes a driving bevel gear and a driven bevel gear 8 with the same structural size, the driving bevel gear and the driven bevel gear 8 are respectively fixed on the wheel shaft 4 of the driving walking wheel group and the driven walking wheel group, the driving bevel gear and the driven bevel gear 8 are respectively meshed and connected with a transmission bevel gear A and a transmission bevel gear B9, the transmission bevel gear A and the transmission bevel gear B9 are respectively fixed to the two ends of the transmission shaft 6, the driving bevel gear and the driven bevel gear 8 are respectively located on the left and right sides of the transmission shaft 6, the two ends of the transmission shaft 6 are rotatably connected to the side of the mounting box 2, the wheel shaft 4 of the driving walking wheel group drives the transmission shaft 6 to rotate through the meshing connection between the driving bevel gear 8 and the transmission bevel gear A9, and then the transmission shaft 6 drives the wheel shaft 4 of the driven walking wheel group to rotate synchronously through the meshing connection between the transmission bevel gear B9 and the driven bevel gear 8, thereby ensuring that the driving walking wheel group and the driven walking wheel group rotate and roll synchronously, thereby further ensuring the stability of the frame operation.

[0036] In one of the embodiments of the present invention, the synchronous assembly includes a driving pulley and a driven pulley with the same diameter, and the driving pulley and the driven pulley are respectively fixed on the wheel axles of the driving walking wheel group and the driven walking wheel group, and the driving pulley and the driven pulley are connected by a synchronous belt. The transmission connection between the wheel axle pulley of the driving walking wheel group and the synchronous belt drives the wheel axle of the driven walking wheel group to rotate synchronously, thereby ensuring that the driving walking wheel group and the driven walking wheel group rotate and roll synchronously.

[0037] In one embodiment of the present invention, the running wheel 3 in the running wheel assembly is a self-adjusting explosion-proof safety wheel.

[0038] The above are only preferred embodiments of the present invention, and only specifically describe the technical principles of the present invention. These descriptions are only for explaining the principles of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations here, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention, and other specific implementations of the present invention that can be associated with by technicians in this field without creative labor, should be included in the scope of protection of the present invention.

Claims

1. A self-adjusting explosion-proof wheel assembly for a crane, comprising a frame and a traveling wheel assembly arranged near four corners of the lower surface of the frame, wherein the four traveling wheel assemblies are arranged symmetrically on the lower surface of the frame, wherein the traveling wheel assembly comprises a mounting box fixedly connected to the frame, and wheel axles are rotatably connected on the left and right side surfaces of the mounting box, and traveling wheels are arranged on the wheel axles, and the characteristics are as follows: A shock absorbing mechanism is arranged between the installation box and the wheel axle, and the shock absorbing mechanism includes a shock absorbing component A and a shock absorbing component B. The shock absorbing component A is arranged between the top surface of the installation box and the wheel axle, and the shock absorbing component B is arranged between the side plates on the left and right sides of the installation box and the wheel axle. The two walking wheel groups in front of the frame are active walking wheel groups, and the wheel axles on the two active walking wheel groups are respectively connected to the two output shafts of the dual-output shaft reducer. The dual-output shaft reducer is fixed on the lower surface of the frame and connected to the walking motor. The two walking wheel groups at the rear of the frame are driven walking wheel groups.

2. The self-adjusting explosion-proof wheel assembly for a crane according to claim 1, characterized in that: The shock absorbing assembly A comprises a damping rod, the top end of which is connected to the top end surface of the mounting box, and the bottom end of which is rotatably connected to the wheel axle.

3. A self-adjusting crane explosion-proof wheel assembly as claimed in claim 2, characterized in that: The damping rod is an adjustable damping rod.

4. The self-adjusting explosion-proof wheel set for a crane according to claim 1, characterized in that: The shock absorbing assembly B includes a fixed outer ring fixedly connected to the side of the mounting box, a fixed inner ring is arranged at the center of the fixed outer ring, the fixed inner ring is rotationally connected to the wheel axle, and an elastic mechanism is arranged between the fixed outer ring and the fixed inner ring.

5. The self-adjusting explosion-proof wheel assembly for a crane as claimed in claim 4, characterized in that: The elastic mechanism includes a guide outer sleeve fixed on the inner surface of the fixed outer ring, a guide inner sleeve is slidably connected inside the guide outer sleeve, the other end of the guide inner sleeve is fixedly connected to the outer surface of the fixed inner ring, and a shock-absorbing spring is arranged between the guide inner sleeve and the guide outer sleeve.

6. The self-adjusting explosion-proof wheel set for a crane according to claim 1, characterized in that: A synchronization component is connected between the active running wheel set and the driven running wheel set on the same side.

7. A self-adjusting crane explosion-proof wheel assembly as claimed in claim 6, characterized in that: The synchronization component includes a driving bevel gear and a driven bevel gear with the same structural size, the driving bevel gear and the driven bevel gear are respectively fixed on the wheel shafts of the driving walking wheel group and the driven walking wheel group, the driving bevel gear and the driven bevel gear are respectively meshed and connected with a transmission bevel gear A and a transmission bevel gear B, the transmission bevel gear A and the transmission bevel gear B are respectively fixed on both ends of the transmission shaft, the driving bevel gear and the driven bevel gear are respectively located on the left and right sides of the transmission shaft, and the two ends of the transmission shaft are rotatably connected to the side of the mounting box.

8. The self-adjusting explosion-proof wheel assembly for a crane according to claim 1, characterized in that: The running wheels in the running wheel group are self-adjusting explosion-proof safety wheels.

Images