Driving wheel rivet for shock absorber and manufacturing die of driving wheel rivet

Abstract

The utility model relates to the technical field of rivet manufacturing, and discloses a driving wheel rivet for a shock absorber and a manufacturing die of the driving wheel rivet, the driving wheel rivet for the shock absorber comprises a driving wheel rivet head and a driving wheel rivet rod, the driving wheel rivet rod is fixedly connected to the bottom of the driving wheel rivet head, and the driving wheel rivet head is fixedly connected with the driving wheel rivet rod. A plurality of evenly-distributed cutting blocks are fixedly connected to the bottom of the driving wheel rivet head, an inner hole is formed in the bottom of the driving wheel rivet rod, and the driving wheel rivet head is made of high-strength carburizing steel. According to the utility model, the cutting block at the head of the transmission wheel rivet can be cut into the surface of a workpiece during installation, so that the friction force between the cutting block and the workpiece is increased, and rivet looseness caused by vibration is effectively prevented; and the head part of the driving wheel rivet is made of high-strength carburizing steel, and the rod part of the driving wheel rivet is made of titanium alloy, so that the rivet has the characteristics of high strength and light weight.

Description

TECHNICAL FIELD

[0001] The utility model relates to rivet preparation technical field especially relates to a transmission wheel rivet for shock absorber and preparation mould thereof. BACKGROUND

[0002] The shock absorber is mainly used for absorbing and reducing the energy generated by vibration, guarantees the smoothness of equipment operation, in the structural system of shock absorber, the transmission wheel is responsible for power transmission, makes each component of shock absorber work in coordination, and the efficient operation of transmission wheel and the stable connection with other parts are the core elements to ensure the stability of shock absorber performance;

[0003] At present, when connecting the shock absorber and the transmission wheel, the bolt nut connection mode is used, the connecting structure is mainly composed of bolt, nut and washer, in the installation process, the bolt is passed through the corresponding hole position on the shock absorber and the transmission wheel, and then the nut is tightened, the friction force between the nut and the bolt is utilized to realize the fastening connection of the two.

[0004] The prior art uses the bolt nut to connect the shock absorber and the transmission wheel, although the connection task can be well completed, but there is still some deficiency in light weight, the bolt nut is difficult to greatly reduce the weight for ensuring the reliable connection, and the nut is easy to loosen under the long-term vibration working condition, which not only affects the connection stability, but also needs regular maintenance, increases the use cost, and cannot meet the demand of modern industry for light weight and stability, therefore, the transmission wheel rivet for shock absorber and preparation mould thereof are provided to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortage, the utility model provides a transmission wheel rivet for shock absorber and preparation mould thereof, aims at improving the problems that the bolt nut structure is difficult to greatly reduce the weight, the nut is easy to loosen under the long-term vibration working condition, which not only affects the connection stability, but also needs regular maintenance, increases the use cost in the prior art.

[0006] In order to realize the above purpose, the utility model adopts the following technical scheme:

[0007] A transmission wheel rivet for shock absorber, including transmission wheel rivet head and transmission wheel rivet rod part, the transmission wheel rivet rod part is fixedly connected at the bottom of the transmission wheel rivet head, a plurality of evenly distributed cut blocks are fixedly connected at the bottom of the transmission wheel rivet head, and an inner hole is formed at the bottom of the transmission wheel rivet rod part.

[0008] Further description of the above technical scheme:

[0009] The material used for the rivet head of the transmission wheel is high-strength carburizing steel, and the material used for the rivet rod of the transmission wheel is titanium alloy;

[0010] The utility model discloses still provide a technical scheme:

[0011] A transmission wheel rivet preparation mould for shock absorber, including support seat, the support seat top is provided with transmission wheel rivet mould, the transmission wheel rivet mould inside is opened with a plurality of evenly distributed transmission wheel rivet mould hole, the support seat inside is provided with ejection assembly;

[0012] The ejection assembly includes an ejection plate and two moving blocks, the ejection plate is slidably connected inside the support seat, a plurality of evenly distributed hole rods are fixedly connected to the top of the ejection plate, two moving blocks are slidably connected inside the support seat, a connecting plate is rotatably connected to the top of each moving block, a fixed frame is rotatably connected to the top of each connecting plate, and two fixed frames are fixedly connected to the bottom of the ejection plate. The left side of the support seat is provided with a driving assembly;

[0013] Further description of the above technical solution:

[0014] The driving assembly includes a motor, the motor is installed on the left side of the support seat, a bidirectional threaded rod is fixedly connected to the output end of the motor, and two moving blocks are threadedly connected to the outer periphery of the bidirectional threaded rod respectively.

[0015] Further description of the above technical solution:

[0016] Two limiting rods are fixedly connected inside the support seat, and two moving blocks are slidably connected to the outer periphery of the two limiting rods.

[0017] Further description of the above technical solution:

[0018] A limiting block is fixedly connected inside the support seat, and the middle part of the two limiting rods is fixedly connected inside the limiting block, and the middle part of the bidirectional threaded rod is rotatably connected inside the limiting block.

[0019] Further description of the above technical solution:

[0020] The top of the support seat is fixedly connected with a limiting frame, and the limiting frame abuts against the outer periphery of the transmission wheel rivet mould.

[0021] The utility model has the advantages of:

[0022] 1. In the utility model, the cutting piece of the transmission wheel rivet head can cut into the workpiece surface during installation, increases the friction between the workpiece, effectively prevents rivet loosening caused by vibration; the inner hole of the transmission wheel rivet rod bottom reduces the weight of the rivet, and the transmission wheel rivet head adopts high-strength carburizing steel, and the transmission wheel rivet rod adopts titanium alloy design, so that the rivet has the characteristics of high strength and light weight, meets the high requirements of the shock absorber transmission wheel on the rivet performance, and improves the overall performance and stability of the shock absorber.

[0023] 2. In the utility model, through the cooperation between motor, bidirectional screw rod, moving block, connecting plate, fixed frame, ejection plate and hole rod, the motor drives the bidirectional screw rod to rotate, drives two moving blocks to move, and the moving block pushes the ejection plate to slide in the support seat through the connecting plate and fixed frame, so that the hole rod at the top of the ejection plate ejects the transmission wheel rivet from the die hole, realizes automatic demolding, improves production efficiency, reduces labor cost and labor intensity. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 A three-dimensional schematic view of a transmission wheel rivet for a shock absorber is provided for the utility model;

[0025] Fig. 2 A structure schematic view of a cutting piece of a transmission wheel rivet for a shock absorber is provided for the utility model;

[0026] Fig. 3 A structure schematic view of an inner hole of a transmission wheel rivet for a shock absorber is provided for the utility model;

[0027] Fig. 4 A three-dimensional schematic view of a transmission wheel rivet preparation die for a shock absorber is provided for the utility model;

[0028] Fig. 5 A structure schematic view of a driving assembly of a transmission wheel rivet preparation die for a shock absorber is provided for the utility model;

[0029] Fig. 6 A structure schematic view of an ejection assembly of a transmission wheel rivet preparation die for a shock absorber is provided for the utility model.

[0030] LEGEND:

[0031] 1, transmission wheel rivet head; 2, transmission wheel rivet rod; 3, cutting piece; 4, inner hole; 5, support seat; 6, transmission wheel rivet die; 7, limiting frame; 8, transmission wheel rivet die hole; 9, ejection plate; 10, hole rod; 11, moving block; 12, connecting plate; 13, fixed frame; 14, bidirectional screw rod; 15, motor; 16, limiting rod; 17, limiting block. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of protection of the utility model.

[0033] With reference to Figs. 1-3 The utility model provides an embodiment: a transmission wheel rivet for shock absorber, including transmission wheel rivet head 1 and transmission wheel rivnel rod part 2, transmission wheel rivnel rod part 2 fixedly connected in transmission wheel rivet head 1 bottom, transmission wheel rivet head 1 bottom is fixedly connected with a plurality of even distribution cut block 3, transmission wheel rivnel rod part 2 bottom is provided with inner hole 4, the material that transmission wheel rivet head 1 uses is high strength carburizing steel, the material that transmission wheel rivnel rod part 2 uses is titanium alloy.

[0034] Specifically, transmission wheel rivet head 1 as rivet and the main part of the connected member contact, high strength carburizing steel (such as 20CrMnTi) gives it higher strength, can withstand greater external force, ensure that the rivet transmission wheel rivet head 1 is not easy to deform or damage in the use process, transmission wheel rivnel rod part 2 connects transmission wheel rivet head 1 and the connected member, the application of titanium alloy material (such as TC4 or Ti-6Al-4V) makes transmission wheel rivnel rod part 2 reduce weight while ensuring strength, meet the shock absorber lightweight requirement of parts, cut block 3 is evenly distributed in transmission wheel rivet head 1 bottom, when installing rivet, cut block 3 can cut into the workpiece surface, increase the friction between rivet and workpiece, inner hole 4 is provided in transmission wheel rivnel rod part 2 bottom, further reduce the weight of rivet.

[0035] With reference to Figs. 4-6 A transmission wheel rivet preparation mold for shock absorber, including support seat 5, support seat 5 top is provided with transmission wheel rivet mold 6, transmission wheel rivet mold 6 is provided with a plurality of even distribution transmission wheel rivet mold hole 8 inside, support seat 5 is provided with ejection assembly inside, support seat 5 top is fixedly connected with limiting frame 7, limiting frame 7 is in abutment with transmission wheel rivet mold 6 periphery.

[0036] Specifically, support seat 5 plays the role of supporting and fixing the whole mold, transmission wheel rivet mold 6 is located at the top of support seat 5, and the transmission wheel rivet mold hole 8 inside is the key structure of the formed transmission wheel rivet, a plurality of evenly distributed transmission wheel rivet mold holes 8 can realize the preparation of multiple rivets at a time, improve the production efficiency, limiting frame 7 is fixed on the top of support seat 5 and abuts against the periphery of transmission wheel rivet mold 6, which plays the role of positioning and limiting the transmission wheel rivet mold 6, and ensures the stability of the mold in use.

[0037] With reference to Figs. 5-6 The ejection assembly comprises an ejection plate 9 and two moving blocks 11. The ejection plate 9 is slidingly connected inside the support seat 5. A plurality of evenly distributed hole rods 10 are fixedly connected to the top of the ejection plate 9. The two moving blocks 11 are slidingly connected inside the support seat 5. A connecting plate 12 is rotatably connected to the top of each of the two moving blocks 11. A fixing frame 13 is rotatably connected to the top of each of the two connecting plates 12. The two fixing frames 13 are fixedly connected to the bottom of the ejection plate 9. A driving assembly is arranged on the left side of the support seat 5. The driving assembly comprises a motor 15. The motor 15 is installed on the left side of the support seat 5. A bidirectional threaded rod 14 is fixedly connected to the output end of the motor 15. The two moving blocks 11 are threadedly connected to the outer periphery of the bidirectional threaded rod 14, respectively. Two limiting rods 16 are fixedly connected inside the support seat 5. The two moving blocks 11 are slidingly connected to the outer periphery of the two limiting rods 16. A limiting block 17 is fixedly connected inside the support seat 5. The middle portions of the two limiting rods 16 are fixedly connected inside the limiting block 17. The middle portion of the bidirectional threaded rod 14 is rotatably connected inside the limiting block 17.

[0038] Specifically, the motor 15 is arranged on the left side of the support seat 5. After being started, the motor 15 drives the bidirectional threaded rod 14 to rotate. When the bidirectional threaded rod 14 rotates, the two moving blocks 11 move towards or away from each other along the bidirectional threaded rod 14 since they are threadedly connected to the outer periphery of the bidirectional threaded rod 14, respectively. In the movement process of the moving blocks 11, the connecting plates 12 rotatably connected to the top of the moving blocks 11 drive the fixing frames 13 to move. The fixing frames 13 are fixedly connected to the bottom of the ejection plate 9, so that the ejection plate 9 slides inside the support seat 5. The plurality of evenly distributed hole rods 10 fixedly connected to the top of the ejection plate 9 rise with the rising of the ejection plate 9, thereby ejecting the transmission wheel rivet formed in the transmission wheel rivet die hole 8. The shape of the top of the hole rod 10 is consistent with that of the inner hole 4, so that the hole is formed at the bottom of the transmission wheel rivet rod portion 2 when the transmission wheel rivet is formed. The limiting rods 16 are fixedly connected inside the support seat 5, which guides and limits the movement of the moving blocks 11 to prevent the moving blocks 11 from deviating in the movement process. The limiting block 17 is fixedly connected inside the support seat 5, which fixes the middle portions of the limiting rods 16 and provides rotational support for the bidirectional threaded rod 14 to ensure the stability of the rotation of the bidirectional threaded rod 14.

[0039] Working principle: when the transmission wheel rivet is applied to the shock absorber, during the installation process, the cutting block 3 at the bottom of the transmission wheel rivet head 1 will cut into the workpiece surface under the action force of the rivet being driven into the workpiece, and since the cutting block 3 is uniformly distributed, it can be in close contact with the workpiece surface, greatly increasing the friction between the rivet and the workpiece, effectively preventing the loosening trend of the rivet due to vibration when the shock absorber works, and the inner hole 4 at the bottom of the transmission wheel rivet rod 2 reduces the overall weight of the rivet, and the transmission wheel rivet head 1 made of high-strength carburizing steel can withstand greater external force to prevent deformation of the transmission wheel rivet head 1; the transmission wheel rivet rod 2 made of titanium alloy reduces the weight under the condition of meeting the connection strength requirement, so that the rivet can better meet the high requirements of the transmission wheel of the shock absorber on the performance of the rivet under complex working conditions, ensure the stable operation of the shock absorber, and improve the overall performance.

[0040] When the transmission wheel rivet preparation mold is working, the motor 15 is started, the motor 15 output end drives the bidirectional threaded rod 14 to rotate, the bidirectional threaded rod 14 rotation drives the two moving blocks 11 to move towards or away from each other along the bidirectional threaded rod 14, when the moving blocks 11 move, the connecting plate 12 connected by the top rotation drives the fixed frame 13 to move, so that the ejection plate 9 slides inside the support seat 5, the top hole rod 10 on the ejection plate 9 rises, the transmission wheel rivet formed in the transmission wheel rivet mold hole 8 is ejected, and automatic demolding is realized.

[0041] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A transmission wheel rivet for a shock absorber, comprising a transmission wheel rivet head (1) and a transmission wheel rivet shank (2), characterized in that: The transmission wheel rivet rod part (2) is fixedly connected at the bottom of the transmission wheel rivet head part (1), a plurality of cutting blocks (3) are uniformly distributed and fixedly connected at the bottom of the transmission wheel rivet head part (1), and an inner hole (4) is formed at the bottom of the transmission wheel rivet rod part (2).

2. A drive wheel rivet for a shock absorber as defined in claim 1, characterized in that: The transmission wheel rivet head part (1) is made of high-strength carburizing steel, and the transmission wheel rivet rod part (2) is made of titanium alloy.

3. A transmission wheel rivet manufacturing die for a shock absorber, applied to the transmission wheel rivet of any one of claims 1-2, comprising a support seat (5), characterized in that: The support seat (5) is provided with a transmission wheel rivet die (6) at the top, a plurality of transmission wheel rivet die holes (8) are uniformly distributed and formed in the transmission wheel rivet die (6), and an ejection assembly is arranged in the support seat (5). The ejection assembly comprises an ejection plate (9) and two moving blocks (11), the ejection plate (9) is slidably connected in the support seat (5), a plurality of hole rods (10) are fixedly connected to the top of the ejection plate (9), the two moving blocks (11) are slidably connected in the support seat (5), a connecting plate (12) is rotatably connected to the top of each of the two moving blocks (11), a fixed frame (13) is rotatably connected to the top of each of the two connecting plates (12), the two fixed frames (13) are fixedly connected to the bottom of the ejection plate (9), and a driving assembly is arranged on the left side of the support seat (5).

4. A drive hub rivet production tool for a shock absorber as defined in claim 3, wherein: The driving assembly comprises a motor (15), the motor (15) is installed on the left side of the support seat (5), a bidirectional threaded rod (14) is fixedly connected to the output end of the motor (15), and the two moving blocks (11) are threadedly connected to the outer periphery of the bidirectional threaded rod (14).

5. A drive hub rivet production tool for a shock absorber as defined in claim 4, wherein: Two limiting rods (16) are fixedly connected in the support seat (5), and the two moving blocks (11) are slidably connected to the outer periphery of the two limiting rods (16).

6. A drive hub rivet production tool for a shock absorber as defined in claim 5, wherein: A limiting block (17) is fixedly connected in the support seat (5), and the two limiting rods (16) are fixedly connected to the inside of the limiting block (17), and the bidirectional threaded rod (14) is rotatably connected to the inside of the limiting block (17).

7. A drive hub rivet production tool for a shock absorber as defined in claim 3, wherein: A limiting frame (7) is fixedly connected to the top of the support seat (5), and the limiting frame (7) abuts against the outer periphery of the transmission wheel rivet die (6).

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