Novel wear-resistant spring pin

Abstract

The utility model discloses a novel wear-resisting spring pin which comprises a pin body, an upper groove and a lower groove which are symmetrically arranged are formed in the front face of the pin body, a plurality of inserting grooves distributed at equal intervals are formed in the outer wall of the pin body, an inserting hole is formed in the inner wall of each inserting groove, an ejector block is arranged above the pin body, and the ejector block is connected with the pin body. An annular groove is formed in the outer wall of the ejector block, a first mounting groove is formed in the top of the pin body, a second mounting groove is formed in the bottom of the ejector block, and the inner wall of the first mounting groove and the inner wall of the second mounting groove are jointly and fixedly connected with a connecting spring. The pin body and the ejector block are sequentially provided with an anti-oxidation layer, a corrosion-resistant layer, a wear-resistant layer, a reinforcing layer and a base layer from outside to inside. By arranging the anti-oxidation layer, the corrosion-resistant layer, the wear-resistant layer, the reinforcing layer and the base layer, the spring pin can be subjected to anti-oxidation and anti-corrosion protection, so that the wear resistance of the spring pin is enhanced, the hardness and the strength of the spring pin are enhanced, and the service life of the spring pin is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, especially to a novel wear -resisting spring pin. BACKGROUND

[0002] In the steel plate spring suspension system of the car, the steel plate spring assembly and the support are generally connected by the spring pin, so the spring pin is needed.

[0003] The existing spring pin is single in material, is only manufactured through the steel base layer, in the long-term use process of the spring pin, the spring pin can contact with the moisture and oxygen in the air, can carry out the corrosion to the outer wall of the spring pin, and in the long-term work of the spring pin, the spring pin can be broken under stress, shortens the service life of the spring pin, in order to solve the above problem, a novel wear -resisting spring pin is provided in the application. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of novel wear -resisting spring pins, which can prevent oxidation, corrosion protection by setting oxidation-preventing layer, corrosion-resistant layer, wear-resistant layer, reinforcing layer and base layer, enhance the wear resistance of the spring pin, enhance the hardness and strength of the spring pin, extend the service life of the spring pin.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A novel wear -resisting spring pin, including pin body, the front of the pin body is provided with the upper groove and the lower groove of symmetric setting, the outer wall of the pin body is provided with a plurality of insertion slots of equal interval distribution, the inner wall of each insertion slot is provided with insertion hole, the top of the pin body is provided with top inclined surface, the bottom of the pin body is provided with lower arc surface, the top of the pin body is equipped with top block, the outer wall of the top block is provided with ring groove, the top of the pin body is provided with first installation slot, the bottom of the top block is provided with second installation slot, the inner wall of first installation slot and the inner wall of second installation slot are fixedly connected with connecting spring, the material of the pin body and top block is sequentially provided with oxidation-preventing layer, corrosion-resistant layer, wear-resistant layer, reinforcing layer and base layer from outside to inside.

[0007] Preferably, both ends of the connecting spring are installed and fixed with the pin body and the top block by welding.

[0008] Preferably, the material of the oxidation-preventing layer is epoxy resin coating.

[0009] Preferably, the material of the corrosion-resistant layer is chromium plating layer.

[0010] Preferably, the material of the wear-resistant layer is aluminum alloy layer.

[0011] Preferably, the material of the reinforcing layer is titanium alloy.

[0012] Preferably, the material of the base layer is high-strength steel.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The anti-oxidation layer, the corrosion-resistant layer, the wear-resistant layer, the reinforcing layer and the base layer can prevent the spring pin from being oxidized and corroded, enhance the wear resistance of the spring pin, enhance the hardness and strength of the spring pin, and prolong the service life of the spring pin.

[0015] The anti-oxidation layer, the corrosion-resistant layer, the wear-resistant layer, the reinforcing layer and the base layer can prevent the spring pin from being oxidized and corroded, enhance the wear resistance of the spring pin, enhance the hardness and strength of the spring pin, and prolong the service life of the spring pin. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model provides a first structure schematic drawing of novel wear -resisting spring pin;

[0017] Figure 2 The utility model provides a second structure schematic drawing of novel wear -resisting spring pin;

[0018] Figure 3 The utility model provides a sectional structure schematic drawing of novel wear -resisting spring pin;

[0019] Figure 4 The utility model provides a material section structure schematic drawing of novel wear -resisting spring pin.

[0020] In the drawing: 1 pin body, 2 upper recess, 3 lower recess, 4 insertion slot, 5 insertion hole, 6 top inclined surface, 7 lower arc surface, 8 top block, 9 ring groove, 10 first installation slot, 11 second installation slot, 12 connecting spring, 13 anti-oxidation layer, 14 corrosion-resistant layer, 15 wear-resistant layer, 16 reinforcing layer, 17 base layer. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0022] Reference Figures 1-4The utility model provides a novel wear -resisting spring pin, including the pin body 1, the front surface of pin body 1 is equipped with the upper groove 2 and the lower groove 3 of symmetrical arrangement, the outer wall of pin body 1 is equipped with a plurality of equidistantly distributed insertion slot 4, the inner wall of each insertion slot 4 is equipped with the insertion hole 5, when pin body 1 is assembled with the vehicle body, through bolt insertion into insertion hole 5, the installation and fixation of the pin body 1 are completed.

[0023] The top of pin body 1 is equipped with top inclined plane 6, the bottom of pin body 1 is equipped with lower arc face 7, lower arc face 7 is inserted end, top inclined plane 6 is external connection end, the top of pin body 1 is equipped with top block 8, the outer wall of top block 8 is equipped with ring groove 9, the top of pin body 1 is equipped with first installation slot 10, the bottom of top block 8 is equipped with second installation slot 11, the inner wall of first installation slot 10 and the inner wall of second installation slot 11 are fixedly connected with connecting spring 12, both ends of connecting spring 12 are installed and fixed with pin body 1 and top block 8 through welding, top block 8 is installed on the vehicle body, and the installation and fixation of the device are completed.

[0024] The material of pin body 1 and top block 8 is sequentially provided with oxidation-proof layer 13, corrosion-resistant layer 14, wear -resisting layer 15, reinforcing layer 16 and base layer 17 from outside to inside, the material of oxidation-proof layer 13 is epoxy resin coating, can isolate oxygen, avoid being oxidized, the material of corrosion-resistant layer 14 is chrome plating layer, enhances the wear resistance of the spring pin, prolongs the service life of spring pin, the material of wear -resisting layer 15 is aluminium alloy layer, enhances the hardness of spring pin, makes the wear -resisting of the spring pin, the material of reinforcing layer 16 is titanium alloy, enhances the strength of the spring pin, makes the hardness of the device strengthen, the material of base layer 17 is high-strength steel, provides main support.

[0025] The utility model discloses a novel wear -resisting spring pin, including the pin body 1, the front surface of pin body 1 is equipped with the upper groove 2 and the lower groove 3 of symmetrical arrangement, the outer wall of pin body 1 is equipped with a plurality of equidistantly distributed insertion slot 4, the inner wall of each insertion slot 4 is equipped with the insertion hole 5, when pin body 1 is assembled with the vehicle body, through bolt insertion into insertion hole 5, the installation and fixation of the pin body 1 are completed.

Claims

1. A new type of wear resistant spring pin comprising a pin body (1), characterized in that, The front of the pin body (1) is provided with upper and lower grooves (2, 3) arranged symmetrically, the outer wall of the pin body (1) is provided with a plurality of insertion grooves (4) arranged at equal intervals, the inner wall of each insertion groove (4) is provided with an insertion hole (5), the top of the pin body (1) is provided with a top inclined surface (6), the bottom of the pin body (1) is provided with a lower arc surface (7), the top of the pin body (1) is provided with a top block (8), the outer wall of the top block (8) is provided with a ring groove (9), the top of the pin body (1) is provided with a first mounting groove (10), the bottom of the top block (8) is provided with a second mounting groove (11), the inner wall of the first mounting groove (10) and the inner wall of the second mounting groove (11) are fixedly connected with a connecting spring (12), and the materials of the pin body (1) and the top block (8) are sequentially arranged from outside to inside as an oxidation-proof layer (13), a corrosion-resistant layer (14), a wear-resistant layer (15), a reinforcing layer (16) and a base layer (17).

2. A new type of wear resistant spring pin as claimed in claim 1, wherein, Both ends of the connecting spring (12) are mounted and fixed to the pin body (1) and the top block (8) through welding.

3. A new type of wear resistant spring pin as claimed in claim 1, wherein, The material of the oxidation-proof layer (13) is an epoxy resin coating.

4. A new type of wear resistant spring pin as claimed in claim 1, wherein, The material of the corrosion-resistant layer (14) is a chromium plating layer.

5. A new type of wear resistant spring pin as claimed in claim 1, wherein, The material of the wear-resistant layer (15) is an aluminum alloy layer.

6. A new type of wear resistant spring pin as claimed in claim 1, wherein, The material of the reinforcing layer (16) is titanium alloy.

7. A new type of wear resistant spring pin as claimed in claim 1, wherein, The material of the base layer (17) is high-strength steel.

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