End beam wheel set and crane

Abstract

The utility model relates to an end beam wheel set and crane, including: a wheel body mechanism, the wheel body mechanism includes: axle, wheel core, damping ring and hub, the wheel core is sleeved on the axle, the damping ring is sleeved on the wheel core, the hub is respectively sleeved on the wheel core and the damping ring; the connecting mechanism comprises at least two bearings and a supporting mechanism, the two ends of the axle are sleeved with inner rings of the bearings respectively, and the supporting mechanism is connected with outer rings of the bearings. Through the arrangement, the damping rings can absorb vibration and impact energy, convert kinetic energy into heat energy, absorb the heat energy and dissipate the heat energy, vibration and noise are reduced during running of a travelling crane, abrasion between wheel rails is reduced, the service life is prolonged, motor driving energy loss is reduced, and running stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of wheel, especially a kind of end beam wheel set and crane. BACKGROUND

[0002] As the main running and load-bearing component of travelling crane, the diversification of handling requirements makes the running speed and load capacity of end beam device continuously improve.The increasingly complex working conditions of end beam wheel set make the interaction between wheel and rail further enhanced.

[0003] The existing end beam wheel set is prone to a series of fatigue phenomena such as wheel tread peeling and cracking during operation, and the service life is reduced;At the same time, the vibration of travelling crane is intensified, the wheel-rail noise is increased, and the running stability of travelling crane is reduced.The reduction of service life and running stability causes safety hazards during equipment use, affects production safety and efficiency, and the increase of noise also endangers the health of workshop production personnel, and since travelling crane is located at the top of workshop, it is inconvenient to replace and maintain, and the use cost is high. SUMMARY

[0004] Therefore, the utility model wants to overcome the problem that the existing technology is prone to a series of fatigue phenomena such as wheel tread peeling and cracking during long-term use and movement on uneven path, and the service life is reduced, so as to provide an end beam wheel set and crane.

[0005] To solve the above technical problems, the utility model provides an end beam wheel set, comprising:

[0006] The wheel body mechanism comprises: wheel shaft, wheel core, shock ring and hub, the wheel core is sleeved on the wheel shaft, the shock ring is sleeved on the wheel core, and the hub is sleeved on the wheel core and the shock ring respectively;

[0007] The connecting mechanism comprises: bearing and support mechanism, the bearing is at least two and the inner ring is sleeved on both ends of the wheel shaft respectively, and the support mechanism is connected with the outer ring of at least two bearings.

[0008] The shock ring, hub and wheel core are further provided with a compression ring, the wheel core, compression ring and hub are sequentially sleeved from inside to outside, and the end face of the compression ring abuts against the shock ring.

[0009] The side of the compression ring close to the wheel core has a protruding part, and the wheel core is provided with a groove matched with the protruding part.

[0010] The protruding part abuts against the second inclined part, and the compression ring is detachably connected with the hub and the wheel core.

[0011] In an embodiment of the utility model, the damping ring includes ring body, the ring body is bent to the direction of far away from the central axis on the side, and the first ring groove and the first convex ring are formed respectively in the direction of close to and far away from the central axis, the wheel core extends the second convex ring suitable for the first ring groove, the wheel hub is provided with the second ring groove suitable for the first convex ring.

[0012] In an embodiment of the utility model, the two ends of the ring body along the axial direction are respectively inclined to form the first inclined part and the second inclined part in the direction of far away from the central axis, and the wheel core and the wheel hub are respectively provided with the third ring groove and the fourth ring groove suitable for the first inclined part and the second inclined part.

[0013] In an embodiment of the utility model, the bearing and the wheel core are provided with a spacer sleeve, and the spacer sleeve is sleeved on the axle.

[0014] In an embodiment of the utility model, the damping plate is connected to the compression ring and the wheel hub by screws.

[0015] In an embodiment of the utility model, the side of the bearing far away from the wheel core is provided with a dustproof end cover, and the dustproof end cover and the bearing are covered on the corresponding end of the axle.

[0016] The embodiment discloses a crane, which comprises the end beam wheel set.

[0017] Compared with the prior art, the above technical scheme of the utility model has the following advantages:

[0018] The end beam wheel set comprises a wheel axle, a wheel core, a damping ring and a wheel hub, the wheel axle, the wheel core, the damping ring and the wheel hub rotate synchronously, the wheel hub rolls on a track to be walked, the damping ring on the wheel core rotates with the rotation of the wheel core, absorbs vibration and impact energy, improves the contact stress between the wheel and the track, reduces the wheel-rail wear, reduces the motor energy loss, the wheel axle is connected to a support mechanism through a bearing, and the end beam bears external weight, when the crane runs, the damping ring can absorb vibration and impact energy, convert kinetic energy into heat energy, absorb and dissipate the heat energy, reduce vibration and noise during the running of the crane, reduce the wear between the wheel and the track, prolong the service life, reduce the motor driving energy loss, and improve the running stability. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to make the content of the utility model more easily understood, the utility model is further described in detail below according to the specific embodiments of the utility model and in combination with the drawings, wherein

[0020] Figure 1 is the cross-sectional view of the wheel set of the utility model;

[0021] Figure 2 is the cross-sectional view of the wheel of the utility model;

[0022] Figure 3 is a structural schematic view of the damping plate of the utility model;

[0023] Figure 4 is a sectional view of the damping plate of the utility model.

[0024] The specification reference signs are as follows: 1, dustproof end cover; 2, support part; 4, support mechanism; 5, wheel hub; 6, shock ring; 7, wheel core; 8, press ring; 9, damping plate; 91, damping layer; 92, stainless steel layer; 10, wheel shaft; 11, bolt; 12, spacer sleeve; 13, bearing; 14, first blocking ring; 15, second blocking ring; 16, protruding part; 17, groove. DETAILED DESCRIPTION

[0025] The utility model will be further described below in combination with the drawings and specific embodiments, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model.

[0026] Embodiment 1

[0027] Referring to Figures 1-4 The utility model discloses a end beam wheel set,

[0028] Including:

[0029] Wheel body mechanism, it includes: wheel shaft 10, wheel core 7, shock ring 6 and wheel hub 5, the wheel core 7 is set on wheel shaft 10, the shock ring 6 is set on wheel core 7, and the wheel hub 5 is set on wheel core 7 and shock ring 6 respectively;

[0030] Connecting mechanism, it includes: bearing 13 and support mechanism 4, the bearing 13 is at least two and the inner ring is set on the both ends of wheel shaft 10 respectively, and the support mechanism 4 is connected with the outer ring of at least two bearings 13.

[0031] The utility model discloses a end beam wheel set, wheel shaft 10, wheel core 7, shock ring 6 and wheel hub 5 synchronous rotation, wheel hub 5 rolls in the track to be walked, and the shock ring 6 on wheel core 7 rotates along with the rotation of wheel core 7, absorbs vibration and impact energy, improves the contact stress between car wheel and track, reduces wheel rail wear, reduces motor energy loss, and wheel shaft 10 is connected in support mechanism 4 through bearing 13 rotation, and the external load is borne through end beam, when running, shock ring 6 can absorb vibration and impact energy, converts kinetic energy into heat energy absorption and dissipates, vibration and noise are reduced when running, and the service life is prolonged, and the motor driving energy loss is reduced, and the running stability is improved.

[0032] Referring to Figure 2As shown, the damping ring 6, the hub 5 and the wheel core 7 are further provided with a compression ring 8, the wheel core 7, the compression ring 8 and the hub 5 are sequentially sleeved from inside to outside, the end surface of the compression ring 8 abuts against the damping ring 6, the compression ring 8 is generally annular in shape, the inner diameter of which is matched with the outer diameter of the wheel core 7, and the outer diameter is matched with the inner diameter of the hub 5, so as to realize the close sleeving relationship. In the embodiment, the compression ring 8 is arranged at the outer side of the wheel core 7 and the hub 5, the inner side of the wheel core 7 and the hub 5 abuts, and the wheel core 7 and the hub 5 are arranged in the corresponding convex ring and the corresponding ring groove at the inner side to form a stepped surface, thereby limiting the axial displacement of the wheel set. In the embodiment, the damping ring 6 is a rubber ring.

[0033] Referring to Figure 2 As shown, the side of the compression ring 8 close to the wheel core 7 has a protruding part 16, and the wheel core 7 is provided with a groove 17 matched with the protruding part 16. When the end beam wheel set is in the running state, the wheel core 7 rotates together with the wheel shaft 10 and transmits power to the compression ring 8. At this time, the protruding part 16 of the side of the compression ring 8 close to the wheel core 7 is embedded in the groove 17 of the wheel core 7, which plays a positioning and anti-rotation role. In the circumferential direction, the compression ring 8 cannot rotate relative to the wheel core 7 due to the close matching of the protruding part 16 and the groove 17. When the wheel core 7 is subjected to torque, it will not slip in the angular direction with the compression ring 8. The relative positions of the compression ring 8, the damping ring 6 and the hub 5 are kept stable, and the damping function of the damping ring 6 is ensured. The outer ring of the bearing 13 is fixedly connected with a supporting part 2, and the supporting mechanism 4 is detachably fixedly connected with the supporting part 2 of the outer ring of the bearing 13 through the bolt 11.

[0034] The protruding part 16 abuts against the second inclined part, and the compression ring 8 is detachably connected with the hub 5 and the wheel core 7. When the end beam wheel set is normally running, the gravity of the vehicle and the interaction force between the wheel and the rail are transmitted to the damping ring 6 through the hub 5. The damping ring 6 is elastically deformed to fill the cavity, the compression ring 8 made of damping rubber is fixed in the cavity between the hub 5 and the wheel core 7, and a certain pre-tightening force is provided to make the damping rubber deform. The compression ring 8 and the wheel core 7 are connected by the bolt 11, which is convenient to assemble and disassemble.

[0035] The damping ring 6 comprises a ring body, which is bent away from the central axis on the circumferential side and has a first ring groove and a first convex ring formed on the sides close to and away from the central axis respectively. The wheel core 7 extends a second convex ring adapted to the first ring groove, and the hub 5 is provided with a second ring groove adapted to the first convex ring. The ring body of the damping ring 6 is the main structural part, and its material is usually rubber or similar elastic material with good elasticity and damping performance. The ring body is bent away from the central axis on the circumferential side, and a first ring groove is formed on the side close to the central axis. The ring groove has a specific depth and width for cooperation with the structure on the wheel core 7. A first convex ring is formed on the side away from the central axis, and the outer diameter, height and other dimensions of the first convex ring are adapted to the structure on the hub 5. During the deformation of the damping ring 6, the close cooperation between the first ring groove and the second convex ring, and the first convex ring and the second ring groove ensures that the damping ring 6 cannot slide or separate relative to the wheel core 7 and the hub 5.

[0036] The two ends of the ring body along the axial direction are respectively inclined to form a first inclined part and a second inclined part away from the central axis. The wheel core 7 and the hub 5 are respectively provided with a third ring groove and a fourth ring groove adapted to the first inclined part and the second inclined part. When the end beam wheel set is running on the track, the hub 5 will be subjected to various forces from the track, such as vertical gravity, horizontal friction and impact force due to uneven track, etc. These forces will be transmitted to the damping ring 6 through the hub 5. Because the ring body of the damping ring 6 is provided with inclined parts at both axial ends and cooperates with the ring grooves on the wheel core 7 and the hub 5, when subjected to force, the first inclined part and the second inclined part will produce a certain extrusion deformation in the third ring groove and the fourth ring groove. This deformation can effectively absorb and disperse the force from the hub 5, avoid local stress concentration, and thus better play the damping role. At the same time, this cooperation structure also enhances the connection stability between the damping ring 6 and the wheel core 7 and the hub 5. In the process of high-speed rotation or frequent start-stop of the wheel set, even if subjected to a larger torque and centrifugal force, due to the close cooperation of the inclined parts and the ring grooves, the damping ring 6 will not easily displace axially or circumferentially, ensuring the reliability of the cooperative work between the components of the wheel set, and thus improving the overall performance and service life of the end beam wheel set.

[0037] Referring to Figure 1 As shown, a spacer sleeve 12 is arranged between the bearing 13 and the wheel core 7, and the spacer sleeve 12 is sleeved on the wheel shaft 10. The spacer sleeve 12 plays an isolation role, and in addition, due to the existence of the spacer sleeve 12, it can also isolate the possible electrochemical corrosion between different materials between the bearing 13 and the wheel core 7 to a certain extent. When the bearing 13 and the wheel core 7 adopt different metal materials, electrochemical corrosion may occur in a humid or electrolyte environment, and the spacer sleeve 12 can act as a physical barrier to reduce direct contact between the two, thereby reducing the risk of corrosion and improving the durability and reliability of the wheel set.

[0038] Referring to Figures 3-4 As shown in the figure, the damping plate 9 is connected to the pressure ring 8 and the wheel hub 5 by screws respectively. The damping plate 9 is connected to the pressure ring 8 and the wheel hub 5 by screws, further enhancing the shock absorption and noise reduction performance of the wheel set, and improving the running stability. It can convert vibration energy into other forms of energy such as internal energy dissipation during the operation of the wheel set, thereby reducing vibration and noise. The damping plate 9 is usually made of materials with high damping properties, such as rubber-metal composite damping materials, viscoelastic damping materials, etc. Its shape is generally annular or adapted to the shape of the connection part of the pressure ring 8 and the wheel hub 5, and the thickness is determined according to the actual shock absorption requirements and installation space. The surface of the damping plate 9 is well fitted with the pressure ring 8 and the wheel hub 5.

[0039] Referring to Figure 1 As shown in the figure, the bearing 13 is provided with a dustproof end cover 1 away from the wheel core 7, and the dustproof end cover 1 and the bearing 13 cover the corresponding end of the wheel shaft 10. The dustproof end cover 1 and the bearing 13 jointly cover the corresponding end of the wheel shaft 10, forming an effective protective barrier. When the wheel set is running, foreign matters such as dust and impurities in the external environment approach the bearing 13 part under the action of air flow and the like. However, due to the blockage of the dustproof end cover 1 and the sealing structure between the dustproof end cover 1 and the wheel shaft 10, foreign matters cannot easily enter the inside of the bearing 13. For example, when the wheel set is running in an outdoor environment with dust, even if there are a large number of dust particles in the air, the sealing lip of the dustproof end cover 1 closely fits the wheel shaft 10, which can effectively prevent dust particles from entering the bearing 13, protecting the rolling elements, raceways and grease inside the bearing 13 from being contaminated. The inside of the bearing 13 can be kept clean, the grease will not deteriorate due to the mixing of impurities, and the rolling elements and raceways will not be worn by foreign matters. The bearing 13 can normally operate under good lubrication and low wear conditions, reducing the probability of failure and prolonging its service life. At the same time, the normal operation of the bearing 13 also ensures the stable rotation of the wheel shaft 10, thereby improving the operation reliability and stability of the entire end beam wheel set. The bearing 13 and the dustproof end cover 1 are respectively provided with a first retainer 14 and a second retainer 15.

[0040] Referring to Figure 4 As shown in the figure, the damping plate 9 is arc-shaped, protecting the damping layer 91 and the stainless steel layers 92 attached on both sides of the damping layer 91. The inner sides of the arc-shaped both sides abut against the pressure ring 8 and the wheel hub 5 respectively.

[0041] Example 2

[0042] The present embodiment discloses a crane, comprising an end beam wheel set as described in example 1.

[0043] The crane disclosed by the embodiment comprises an end beam, a wheel set, a lifting mechanism and a running mechanism.

[0044] Obviously, the above embodiments are only examples for clearly illustrating, and are not intended to limit the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments are not required to be exhausted, and the obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. An end beam wheel set, characterized by, The application relates to a wheel body mechanism and a connecting mechanism. The wheel body mechanism comprises a wheel shaft, a wheel core, a damping ring and a wheel hub, the wheel core is sleeved on the wheel shaft, the damping ring is sleeved on the wheel core, and the wheel hub is respectively sleeved on the wheel core and the damping ring. The connecting mechanism comprises bearings and a supporting mechanism, the bearings are at least two, and the inner rings of the bearings are respectively sleeved on the two ends of the wheel shaft, and the supporting mechanism is connected with the outer rings of the at least two bearings.

2. An end beam wheel set according to claim 1, wherein: The damping ring, the wheel hub and the wheel core are further provided with a compression ring, the wheel core, the compression ring and the wheel hub are sequentially sleeved from inside to outside, and the end surface of the compression ring abuts against the damping ring.

3. An end beam wheel set according to claim 2, wherein: The side of the compression ring close to the wheel core is provided with a protruding part, and the wheel core is provided with a groove matched with the protruding part.

4. An end beam wheel set according to claim 3, wherein: The damping ring comprises a ring body, the ring body is bent away from the central axis on the side, and a first ring groove and a first protruding ring are respectively formed in the directions close to and away from the central axis, the wheel core is extended with a second protruding ring matched with the first ring groove, and the wheel hub is provided with a second ring groove matched with the first protruding ring.

5. An end beam wheel set according to claim 4, wherein: The two ends of the ring body along the axial direction are respectively inclined to form a first inclined part and a second inclined part away from the central axis, and the wheel core and the wheel hub are respectively provided with a third ring groove and a fourth ring groove matched with the first inclined part and the second inclined part.

6. An end beam wheel set according to claim 5, wherein: The protruding part abuts against the second inclined part, and the compression ring is detachably connected with the wheel hub and the wheel core.

7. An end beam wheel set according to claim 1, wherein: The bearings and the wheel core are provided with a spacer, and the spacer is sleeved on the wheel shaft.

8. An end beam wheel set according to claim 1, wherein: The application further comprises a damping plate, and the damping plate is connected with the compression ring and the wheel hub through screws.

9. An end beam wheel set according to claim 1, wherein: The side of the bearings away from the wheel core is provided with a dustproof end cover, and the dustproof end cover and the bearings are covered on the corresponding ends of the wheel shaft.

10. A crane, characterized in that The application further comprises a wheel hub and a connecting mechanism. The application further comprises a wheel hub and a connecting mechanism.

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