Forklift tire damping device

Abstract

The invention discloses a forklift tire damping device. The forklift tire damping device comprises an outer rim; the inner rim is connected with the outer rim; the hub is provided with a buffer component, and the buffer component is arranged opposite to the side, away from the outer rim, of the inner rim; the elastic part is arranged between the buffering part and the inner rim and used for achieving damping and buffering through elastic deformation; and the fastening piece is connected with the hub, the inner rim and the outer rim, so that the elastic piece is compressed between the buffer part and the inner rim. The forklift tire damping device is provided with the damping and buffering elastic piece, the impact force borne by the tire can be effectively absorbed, the abrasion of the tire is reduced, the service life of the tire is prolonged, the structure is simple and effective, and the maintenance cost of the tire is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of tire shock absorption, and more particularly to a forklift tire shock absorption device. Background Art

[0002] As one of the vulnerable parts of forklifts, forklift tires play a very important role in the stability and safety of forklifts. The forklift chassis does not have a shock absorber. When the forklift is running, the impact force of the road on the tire is large, which can easily cause wear and damage to the tire, affecting the service life of the tire. Therefore, how to improve the service life of forklift tires has always been a hot topic for technicians in the field.

[0003] In the related art, the rim is improved to achieve shock absorption and thus increase the service life of the tire. This method is mostly used in road vehicles such as automobiles and engineering vehicles, and has a complex structure and high maintenance costs.

[0004] In summary, how to reduce shock to increase the service life of forklift tires while reducing maintenance costs is a problem that needs to be urgently solved by those skilled in the art. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a forklift tire shock absorbing device, which effectively absorbs the impact force on the tire through the setting of elastic parts, reduces tire wear, and increases the service life of the tire. The structure is simple and effective, and the maintenance cost of the tire is reduced.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A forklift tire shock absorbing device, comprising:

[0008] outer rim;

[0009] An inner rim connected to the outer rim;

[0010] The wheel hub is provided with a buffer part, wherein the buffer part is arranged opposite to a side of the inner wheel rim away from the outer wheel rim;

[0011] An elastic member, disposed between the buffer component and the inner rim, and used for achieving shock absorption and buffering through elastic deformation;

[0012] A fastener connects the wheel hub, the inner rim and the outer rim so that the elastic member is compressed between the buffer component and the inner rim.

[0013] Preferably, the buffer component comprises a mounting seat, the mounting seat is arranged in a plurality of mounting countersunk holes arranged circumferentially of the hub, and the elastic member is arranged between the mounting seat and the inner rim;

[0014] The mounting seat and the mounting counterbore are interference fit, and there is a gap between the bottom of the mounting seat and the bottom of the mounting counterbore.

[0015] Preferably, a mounting hole is provided in the mounting seat, and the axial direction of the mounting hole is arranged parallel to the axis of the hub;

[0016] One end of the elastic member is arranged on a side of the inner rim away from the outer rim, and the other end of the elastic member is arranged in the mounting hole.

[0017] Preferably, the wheel hub further comprises a positioning portion, and the positioning portion extends into the connecting holes of the inner rim and the outer rim for installation and positioning;

[0018] The positioning portion is provided with a tapered guide surface, and the tapered guide surface fits against the wall of the connecting hole between the inner rim and the outer rim for guiding.

[0019] Preferably, the guiding distance of the tapered guiding surface is equal to or greater than the thickness of the inner rim and the outer rim;

[0020] The included angle between the generatrix of the tapered guide surface and the axial direction of the hub is 15° to 30°.

[0021] Preferably, the fastener includes a locating pin provided on the wheel hub and located between two adjacent elastic members, the locating pin being arranged in affixed relation to the inner rim; and also includes a wheel hub nut and a wheel hub bolt, the wheel hub nut being arranged in affixed relation to the outer rim, the wheel hub bolt passing through the wheel hub, the locating pin, the inner rim, the outer rim and being connected to the wheel hub nut to compress the elastic member.

[0022] Preferably, at least one of the end of the hub nut abutting against the outer rim and the end of the locating pin abutting against the inner rim is provided with a spherical surface.

[0023] Preferably, a positioning hole is provided between two adjacent mounting countersunk holes, the positioning pin is provided in the positioning hole, and the end of the positioning pin provided with the spherical surface protrudes from the positioning hole.

[0024] Preferably, it further comprises a half shaft for transmitting power, wherein the half shaft is coaxially connected to the wheel hub, and there is a certain distance between the half shaft and the fastener.

[0025] The forklift tire shock-absorbing device provided by the present invention comprises an outer rim, an inner rim, a wheel hub, an elastic member and a fastener, wherein the outer rim and the inner rim are connected, and the wheel hub is provided with a buffer component, and the buffer component is arranged opposite to a side of the inner rim away from the outer rim; further, the elastic member is arranged between the buffer component and the inner rim to achieve a shock-absorbing and buffering effect, specifically, the wheel hub, the inner rim and the outer rim are compressed by the fastener to compress the elastic member between the buffer part and the inner rim, so that the elastic member is in a compressed state; during the travel of the forklift tire, when the road surface causes an impact on the tire to cause the rim to deform, the compressed elastic member can be deformed by force to absorb the impact force, reduce the impact on the tire, thereby reducing the wear of the tire and increasing the service life of the tire, without processing the rim, and the shock-absorbing and buffering effect can be achieved through simple compression and deformation of the elastic member, and the maintenance cost is low.

[0026] The beneficial effects of the present invention are: by compressing the elastic member arranged between the wheel hub buffer component and the inner rim, the rim is buffered and shock-absorbed when it is deformed by impact, the wear of the tire is reduced, the service life of the forklift tire is increased, and the maintenance cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0028] Figure 1 A schematic structural diagram of the forklift tire shock absorbing device provided by the present invention;

[0029] Figure 2 Another schematic diagram of the structure of the forklift tire shock absorbing device provided by the present invention;

[0030] Figure 3 A schematic diagram of the structure of the wheel hub provided by the present invention;

[0031] Figure 4 A side view of the wheel hub provided by the present invention;

[0032] Figure 5 This is a schematic structural diagram of the positioning pin provided by the present invention.

[0033] Figure 1-Figure 5 , the reference numerals include:

[0034] 1-outer rim; 2-inner rim; 3-wheel hub; 4-mounting seat; 5-elastic member; 6-wheel hub nut; 7-locating pin; 8-wheel hub bolt; 9-half shaft; 31-mounting countersunk hole; 32-conical guide surface; 33-locating hole; 71-spherical surface. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] The core of the present invention is to provide a forklift tire shock absorbing device, which realizes buffering and shock absorption when the rim is deformed by impact by compressing the elastic member arranged between the wheel hub buffer component and the inner rim, reduces tire wear, increases the service life of the forklift tire and reduces maintenance costs.

[0037] The forklift tire shock absorbing device provided by the present invention comprises an outer rim 1, an inner rim 2, a hub 3, an elastic member 5 and a fastener. Figure 1 .

[0038] The inner rim 2 is connected to the outer rim 1 , and the fasteners are used to connect the inner rim 2 , the outer rim 1 and the hub 3 , wherein one side of the inner rim 2 is arranged in contact with the outer rim 1 , and the other side is away from the outer rim 1 and arranged opposite to the buffer component of the hub 3 .

[0039] An elastic member 5 is provided between the buffer component and the inner rim 2, and the wheel hub 3 and the inner and outer rims are connected by fasteners, so that the elastic member 5 can be provided between the buffer component and the inner rim 2 in a compressed state, and the shock-absorbing and buffering function is achieved by the elastic member 5 in a compressed state. It should be noted that the compressed state here is pre-compression, and it does not mean that the elastic member 5 is compressed to the limit value. In this compressed state, the vibration of the tire can be reduced to a certain extent. If the elastic member 5 is subjected to force, it can continue to be compressed to achieve a further shock-absorbing and buffering effect.

[0040] Specifically, in actual application, the forklift tire will be subjected to the impact force of the ground during its movement, causing the inner rim 2 and the outer rim 1 to deform. The force generated by the deformation can be further transmitted to the compressed elastic member 5. The elastic member 5 will be compressed and deformed under the force to effectively absorb the impact force on the forklift tire, thereby reducing the wear of the forklift tire and increasing the service life of the forklift tire.

[0041] The elastic member 5 can be specifically arranged along the circumference of the buffer component to ensure the buffering effect of each part of the inner rim 2, that is, to ensure the buffering effect of the entire forklift tire when it is impacted, and to ensure the service life of the entire forklift tire.

[0042] The elastic member 5 may specifically be an elastomer or a spring, which is a component that can achieve a deformation buffering effect.

[0043] By arranging the elastic member 5 in a compressed state between the buffer component and the inner rim 2, the structure is simple and effective, and there is no need to process the inner and outer rims. If the elastic member 5 is damaged, the inner rim 2 and the hub 3 can be removed by removing the fasteners. Accordingly, the elastic member 5 can be simply and conveniently removed for replacement or repair, and the maintenance cost is low, thereby reducing the cost of use.

[0044] In a specific embodiment, the elastic member 5 is arranged in a compressed state in the space between a side of the inner rim 2 away from the outer rim 1 and the end face of the buffer component of the hub 3. After the hub 3, the inner rim 2 and the outer rim 1 are connected and fixed by fasteners, this space is relatively small, and an elastomer can be arranged in this space to achieve buffering and shock absorption. The elastomer can specifically be natural rubber, synthetic rubber, etc.

[0045] In another specific embodiment, a mounting groove for the elastic member 5 is provided on the wheel hub 3, one end of the elastic member 5 contacts the bottom of the mounting groove, and the other end contacts the side of the inner rim 2 away from the outer rim 1. By setting the mounting groove, the direction of the compression deformation of the elastic member 5 can be limited, the installation and removal of the elastic member 5 are convenient, the positioning of the elastic member 5 is convenient, and a reliable and effective shock absorbing and buffering effect is ensured.

[0046] If the forklift tire is moving, the road surface is uneven or it encounters an obstacle, the tire will be impacted and the inner and outer rims will be deformed, and the inner rim 2 will be compressed and deformed to effectively absorb the impact force on the tire, reduce tire wear, and increase the service life of the tire. The above two specific implementations can effectively absorb impact force, effectively buffer, and ensure the shock absorption effect, and can be well applied to tire shock absorption and buffering in the forklift operating environment.

[0047] The forklift tire mentioned above realizes buffering and shock absorption when the rim is deformed by impact by compressing the elastic member 5 arranged between the wheel hub buffer component and the inner rim 2, thereby reducing tire wear, increasing the service life of the forklift tire and reducing maintenance costs, thereby ensuring a good shock absorption effect of the forklift tire and having good application and promotion value.

[0048] Based on the above embodiments, please refer to Figure 1 , Figure 2 , Figure 3 The buffer component includes a mounting seat 4, and a plurality of mounting countersunk holes 31 are circumferentially arranged on the wheel hub 3. The plurality of mounting countersunk holes 31 are preferably evenly arranged to ensure reliable buffering when the circumferential parts of the inner rim 2 are deformed by impact, thereby effectively ensuring the overall service life of the forklift tire.

[0049] The mounting counterbore 31 is provided with a mounting seat 4, and the elastic member 5 is provided between the mounting seat 4 and the inner rim 2. Figure 3The mounting countersunk hole 31 does not penetrate the entire wheel hub 3 , and the mounting countersunk hole 31 provides space for the installation of the elastic member 5 , while limiting the deformation direction of the elastic member 5 , thereby ensuring the reliable use of the elastic member 5 .

[0050] In a specific embodiment, one end of the elastic member 5 is pre-fixed at the bottom of the mounting countersunk hole 31, and the other end is abutted against the inner rim 2. When the tire is impacted and the rim is deformed, the elastic member 5 is compressed and deformed to absorb the rim deformation force, effectively absorbing the impact of the tire, thereby reducing tire wear and increasing the service life of the tire.

[0051] In a specific embodiment, one end of the elastic member 5 abuts against the bottom of the mounting countersunk hole 31, and the other end abuts against the inner rim 2. When the tire is impacted and the rim is deformed, the elastic member 5 is compressed and deformed to absorb the rim deformation force, effectively absorbing the impact of the tire, thereby reducing tire wear and increasing the service life of the tire.

[0052] The mounting seat 4 and the mounting countersunk hole 31 are interference fit, and the top of the mounting seat 4 and the top of the mounting countersunk hole 31 are arranged flush, and there is a gap between the bottom of the mounting seat 4 and the bottom of the mounting countersunk hole 31. When the tire passes through a large bump, a large impact force is generated, and the inner and outer rims are greatly deformed, the pressing force on one or several of the multiple elastic members 5 will be greater than the interference force between the mounting seat 4 and the mounting countersunk hole 31. At this time, the mounting seat 4 corresponding to one or several of the elastic members 5 will move toward the bottom of the mounting countersunk hole 31 to reduce the pre-compression force of the elastic member 5, avoid the elastic member 5 from being over-compressed and causing failure, and ensure the shock absorption effect; in addition, by moving the mounting seat 4 to avoid the elastic member 5 from being over-compressed, it is also possible to further ensure that the shock absorption force of the multiple elastic members 5 remains consistent, and further ensure the shock absorption effect of the shock absorption device. In the above process, the pressing force on the elastic member 5 is the pressure transmitted to the elastic member 5 when the rim is deformed.

[0053] In addition, by providing a certain gap between the bottom of the mounting seat 4 and the bottom of the mounting countersunk hole 31, in the initial state, the elastic member 5 is pre-compressed between the mounting seat 4 and the inner rim 2, and the compression force of the elastic member 5 is less than the interference force of the mounting seat 4 and the mounting countersunk hole 31, thereby ensuring the overall stability when the forklift tire is not impacted. When the forklift tire is impacted, this gap can limit the maximum moving distance of the elastic member 5, preventing the elastic member 5 from failing due to too little compression, thereby affecting the buffering and shock absorbing effect.

[0054] On the basis of any of the above embodiments, a mounting hole is provided in the mounting seat 4, the axial direction of the mounting hole is arranged parallel to the axial direction of the hub 3, and the mounting hole of the mounting seat 4 and the elastic member 5 are arranged one by one, please refer to the figure.

[0055] Please refer to Figure 1One end of the elastic member 5 is arranged on the side of the inner rim 2 away from the outer rim 1, and the other end of the elastic member 5 is arranged in the mounting hole, that is, the compression direction of the elastic member 5 is substantially limited by the mounting hole of the mounting seat 4. In the initial state, when the wheel hub 3, the inner rim 2, and the outer rim 1 are fixed by fasteners, the elastic member 5 is arranged in the mounting hole and between the inner rim 2 in a pre-compressed state, which has the effect of reducing the vibration of the tire; when the forklift tire is impacted, the elastic member 5 is further compressed to absorb the impact force of the tire through compression deformation, so as to reduce the wear of the tire and ensure the service life of the tire.

[0056] In a preferred embodiment, six mounting seats 4 are arranged along the circumference of the hub 3, and an elastic member 5 is pre-compressed in the mounting hole of each mounting seat 4. The pre-compression is specifically achieved by fastening the inner and outer rims and the hub 3 with fasteners.

[0057] On the basis of any of the above embodiments, the wheel hub 3 further comprises a positioning portion, which extends into the connecting holes of the inner rim 2 and the outer rim 1 for installation and positioning;

[0058] The positioning portion is provided with a tapered guide surface 32, and the tapered guide surface 32 fits against the wall of the connecting hole of the inner rim 2 and the outer rim 1 for guiding.

[0059] In this embodiment, the number of mounting seats 4 provided on the wheel hub 3 is preferably 6, and the 6 mounting seats 4 are evenly distributed along the circumference of the wheel hub 3, and the number of elastic members 5 provided on the corresponding wheel hub 3 is also 6.

[0060] Please refer to Figure 2 , Figure 5 The wheel hub 3 also includes a positioning portion. When the forklift tire is installed as a whole, the inner rim 2 and the outer rim 1 can be self-positioned at the positioning portion of the wheel hub 3 to ensure the installation accuracy of the wheel hub 3, the inner rim 2, and the outer rim 1. By ensuring the installation accuracy to ensure the installation position of each component, the consistency of the pre-compression amount of the six elastic members 5 arranged on the circumference of the wheel hub 3 is ensured, and the vibration of the forklift tire caused by the installation error is reduced, thereby effectively ensuring the shock absorption effect of the tire.

[0061] Specifically, the positioning portion is provided with a tapered guide surface, through which the tapered guide surface fits the connection hole wall of the inner rim 2 and the connection hole wall of the outer rim 1 for installation guidance. During installation, the connection hole wall of the inner and outer rims contacts the tapered guide surface to reduce the guide positioning, thereby achieving the aligned positioning installation of the wheel hub 3, the inner rim 2, and the outer rim 1, ensuring the installation accuracy after the fasteners fasten the wheel hub 3, the inner rim 2, and the outer rim 1, ensuring the accuracy of the installation of each component, ensuring the consistency of the pre-compression amount of the 6 elastic parts 5 arranged on the circumference of the wheel hub 3, reducing the vibration caused by the installation error, and effectively ensuring the shock absorption effect of the tire.

[0062] By improving the installation accuracy and coordinating the compression deformation of the elastic member 5 to absorb the impact force, effective shock absorption is achieved for the forklift tire, the wear of the forklift tire is reduced, the service life of the forklift tire is effectively increased, and the reliable stability of the forklift operation is ensured.

[0063] Based on any of the above embodiments, please refer to Figure 2 The guiding distance of the tapered guiding surface 32 is equal to or greater than the thickness of the inner rim 2 and the outer rim 1, ensuring sufficient and reliable contact between the inner and outer rims and the tapered guiding surface 32, ensuring reliable installation guiding effect of the tapered guiding surface 32, ensuring reliable self-positioning effect of the inner and outer rims relative to the wheel hub 3, ensuring the position accuracy of each component of the forklift tire, and ensuring the installation accuracy of the forklift tire.

[0064] The included angle between the generatrix of the conical guide surface 32 and the axial direction of the wheel hub 3 is 15° to 30°, which ensures the guiding effect, the reliable and accurate installation of the wheel hub 3, the inner rim 2 and the outer rim 1, and the installation accuracy of the forklift tire.

[0065] By setting a conical guide surface 32 on the wheel hub 3 and setting corresponding conical surfaces on the inner rim 2 and the outer rim 1, the conical guide surface 32 and the conical surfaces set on the inner and outer rims are matched to each other, so that the inner and outer rims 2 and 1 can be self-positioned and installed on the wheel hub 3, thereby ensuring the installation accuracy of the inner and outer rims, so as to ensure the installation accuracy of the elastic member 5, ensure the consistency of the pre-compression amount of the elastic member 5, and ensure the reliable shock-absorbing effect of the elastic member 5; specifically, under the premise of ensuring the installation accuracy of the inner and outer rims, the pre-compression amounts of multiple elastic members 5 on the wheel hub 3 can be controlled to be consistent to ensure the shock-absorbing effect, and when the inner and outer rims are impacted, the interference fit between the mounting seat 4 and the mounting countersunk hole 31 of the wheel hub 3 can be used to avoid the elastic member 5 from being over-compressed and failing, and the compression amount of the elastic member 5 can still be guaranteed to be consistent to ensure the shock-absorbing effect.

[0066] On the basis of any of the above embodiments, the fastener includes a positioning pin 7 provided on the wheel hub 3 and located between two adjacent elastic members 5, the positioning pin 7 is provided in contact with the inner rim 2 for positioning; the hub nut 6 is provided in contact with the outer rim 1, after the inner rim 2, the outer rim 1 and the wheel hub 3 are guided by the conical guide surface 32 for self-positioning, the hub bolt 8 passes through the wheel hub 3, the positioning pin 7 provided on the wheel hub 3, the inner rim 2 and the outer rim 1, and then is fastened by the hub nut 6, after the hub nut 6 is tightened, the elastic member 5 is reliably locked between the mounting hole of the mounting seat 4 and the inner rim 2 to achieve a shock absorbing effect. By providing the positioning pin 7 and the hub nut 6, the inner rim 2, the outer rim 1 and the wheel hub 3 can be installed and locked with a high installation accuracy, preventing the inner rim 2 and the outer rim 1 from loosening during the travel process, and ensuring the reliable shock absorbing effect of the elastic member 5.

[0067] On the basis of any of the above embodiments, at least one of the end of the hub nut 6 that fits the outer rim 1 and the end of the positioning pin 7 that fits the inner rim 2 is provided with a spherical surface 71, and the structure of the spherical surface 71 is as follows: Figure 5 shown.

[0068] In a specific embodiment, the end of the hub nut 6 that fits the outer rim 1 is provided with a spherical surface 71, and the hub nut 6 contacts the outer rim 1 through the spherical surface 71 to ensure the anti-loosening effect and the fastening effect of the fastener.

[0069] In another specific embodiment, a spherical surface 71 is provided at the end of the positioning pin 7 that fits with the inner rim 2. The positioning pin 7 fits with the side of the inner rim 2 away from the outer rim 1 through the spherical surface 71 to ensure the anti-loosening effect and the fastening effect of the fastener.

[0070] In another specific embodiment, the end of the hub nut 6 that fits with the outer rim 1 and the end of the positioning pin 7 that fits with the inner rim 2 are both provided with a spherical surface 71. The hub nut 6 contacts the outer rim 1 through the spherical surface 71, and at the same time cooperates with the spherical surface of the positioning pin 7 to increase friction, thereby having a better anti-loosening effect.

[0071] By setting the spherical surface 71 and combining the inner and outer rims with the tapered guide surface 32 of the wheel hub 3, the self-positioning installation effect of the inner and outer rims is ensured. When the wheel hub nut 6 is tightened, the inner and outer rims can be self-positioned on the wheel hub 3, so as to accurately assemble the inner and outer rims, thereby ensuring the accuracy of forklift tire installation. By improving the installation accuracy to reduce the tire vibration caused by installation errors, the buffering and shock-absorbing effect of the elastic member 5 is cooperated to reduce the wear of the forklift tire and increase the service life of the forklift tire.

[0072] On the basis of any of the above embodiments, a positioning hole 33 is provided between two adjacent mounting countersunk holes 31 , a positioning pin 7 is provided in the positioning hole 33 , and an end of the positioning pin 7 having a spherical surface 71 extends out of the positioning hole 33 .

[0073] Please refer to Figure 3 The positioning hole 33 is arranged between two adjacent mounting countersunk holes 31. The diameter of this positioning hole 33 is larger than the diameter of the wheel hub bolt 8 and is adaptively set to the diameter of the positioning pin 7. The adaptive setting here specifically means that the diameter of the positioning pin 7 can be equal to the diameter of the positioning hole 33, or it can also mean that the diameter of the positioning pin 7 is slightly larger than the diameter of the positioning hole 33 to achieve interference fit to ensure the effectiveness of the fastening of the connection.

[0074] like Figure 3As shown, the positioning hole 33 is actually a stepped hole, through which the positioning pin 7 is limitedly installed, and the end of the positioning pin 7 with a spherical surface 71 extends out of the positioning hole 33. Further, the hub bolt 8 passes through the hub 3 and enters the positioning pin 7 in the positioning hole 33, and then passes through the inner rim 2 and the outer rim 1 and is connected to the hub nut 6, so as to achieve the effect of reliably and effectively connecting the inner and outer rims and the hub 3.

[0075] By setting a spherical surface 71 on the positioning pin 7, the spherical surface 71 contacts the outer rim 1 to increase the friction force, and cooperating with the setting of the hub nut 6 and the hub bolt 8, the inner and outer rims and the hub 3 are reliably locked to ensure the installation position of the inner and outer rims, avoid affecting the shock absorption effect due to the loosening of the inner and outer rims, and ensure the reliable and effective shock absorption effect of the elastic member 5.

[0076] On the basis of any of the above embodiments, it further includes a half shaft 9 for transmitting power, the half shaft 9 is coaxially connected to the wheel hub 3, and there is a certain distance between the half shaft 9 and the fastener.

[0077] Please refer to Figure 1 , Figure 2 The half shaft 9 is specifically a component for outputting power. The half shaft 9 is coaxially connected to the wheel hub 3. Specifically, the power of the forklift can be transmitted to the forklift tire through the half shaft 9 with the help of bolts and other components to drive the forklift tire to move forward.

[0078] There is a certain distance between the half shaft 9 and the fastener, which is the fastener for fixing the wheel hub 3 and the inner and outer rims. By setting this certain distance, interference between the fastener and the half shaft 9 is avoided, and collision and friction between the two during rotation are avoided, thereby ensuring safe and reliable operation of the components. The certain distance here is specifically achieved by setting different hole positions on the wheel hub 3, and the hole positions for connecting the half shaft 9 and the hole positions for connecting the fastener are respectively set at different positions on the circumference of the wheel hub 3.

[0079] The forklift tire improves the installation accuracy of components through component installation self-positioning, and realizes shock absorption and buffering through the elastic member 5. The structure is simple and effective, reduces tire wear, increases the service life of the tire, and reduces the maintenance cost of the tire.

[0080] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0081] The above is a detailed introduction to a forklift tire shock absorbing device provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in a number of ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A forklift tire shock absorbing device, characterized in that: include: Outer rim (1); An inner rim (2) connected to the outer rim (1); The wheel hub (3) is provided with a buffer component, wherein the buffer component is arranged opposite to a side of the inner wheel rim (2) away from the outer wheel rim (1); An elastic member (5) is disposed between the buffer component and the inner rim (2) and is used to achieve shock absorption and buffering through elastic deformation; A fastener connects the wheel hub (3), the inner wheel rim (2), and the outer wheel rim (1) so that the elastic member (5) is compressed between the buffer component and the inner wheel rim (2).

2. The forklift tire shock absorbing device according to claim 1, characterized in that: The buffer component comprises a mounting seat (4), the mounting seat (4) being arranged in a plurality of mounting countersunk holes (31) arranged circumferentially of the wheel hub (3), and the elastic member (5) being arranged between the mounting seat (4) and the inner wheel rim (2); The mounting seat (4) and the mounting countersunk hole (31) are interference-fitted, and there is a gap between the bottom of the mounting seat (4) and the bottom of the mounting countersunk hole (31).

3. The forklift tire shock absorbing device according to claim 2, characterized in that: A mounting hole is provided in the mounting seat (4), and the axial direction of the mounting hole is arranged parallel to the axial direction of the wheel hub (3); One end of the elastic member (5) is arranged on a side of the inner rim (2) away from the outer rim (1), and the other end of the elastic member (5) is arranged in the mounting hole.

4. The forklift tire shock absorbing device according to claim 2, characterized in that: The wheel hub (3) further comprises a positioning portion, the positioning portion extending into the connecting holes of the inner wheel rim (2) and the outer wheel rim (1) for installation and positioning; The positioning portion is provided with a tapered guide surface (32), and the tapered guide surface (32) fits against the wall of the connecting hole of the inner rim (2) and the outer rim (1) for guidance.

5. The forklift tire shock absorbing device according to claim 4, characterized in that: The guiding distance of the tapered guiding surface (32) is equal to or greater than the thickness of the inner rim (2) and the outer rim (1); The included angle between the generatrix of the tapered guide surface (32) and the axial direction of the hub (3) is 15° to 30°.

6. The forklift tire shock absorbing device according to any one of claims 2 to 5, characterized in that: The fastener comprises a positioning pin (7) provided on the wheel hub (3) and located between two adjacent elastic members (5), the positioning pin (7) being arranged in close contact with the inner wheel rim (2); It also includes a hub nut (6) and a hub bolt (8), wherein the hub nut (6) is arranged in contact with the outer rim (1), and the hub bolt (8) passes through the wheel hub (3), the positioning pin (7), the inner rim (2), the outer rim (1) and is connected to the hub nut (6) to compress the elastic member (5).

7. The forklift tire shock absorbing device according to claim 6, characterized in that: At least one of the end of the hub nut (6) abutting against the outer rim (1) and the end of the positioning pin (7) abutting against the inner rim (2) is provided with a spherical surface (71).

8. The forklift tire shock absorbing device according to claim 7, characterized in that: A positioning hole (33) is provided between two adjacent mounting countersunk holes (31), the positioning pin (7) is provided in the positioning hole (33), and the end of the positioning pin (7) provided with the spherical surface (71) protrudes from the positioning hole (33).

9. The forklift tire shock absorbing device according to claim 1, characterized in that: It also includes a half shaft (9) for transmitting power, wherein the half shaft (9) is coaxially connected to the wheel hub (3), and there is a certain distance between the half shaft (9) and the fastener.

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