Telescopic universal joint fork

Abstract

The telescopic universal joint fork comprises a main shaft and a joint fork part, the joint fork part is fixedly arranged at the front end of the main shaft, the main shaft comprises a fixed shaft fixedly connected with the joint fork part and a sliding shaft located behind the fixed shaft and connected with the fixed shaft in a sliding mode, and the end face of the rear end of the fixed shaft extends forwards to be provided with an adjusting sliding hole. The sliding shaft is matched with the adjusting sliding hole, the sliding shaft is inserted into the adjusting sliding hole in a sliding mode, a connector is fixedly arranged at the rear end of the sliding shaft, a plurality of triangular notches which are continuously arranged in a wavy mode are formed in the upper end of the sliding shaft in the length direction of the sliding shaft, a screw hole communicated with the adjusting sliding hole is formed in the upper end of the fixed shaft, and a bolt is arranged in the screw hole in a matched mode; the bolt corresponds to the triangular notch, the main shaft comprises a fixed shaft and a sliding shaft, and the sliding shaft slides on the fixed shaft, so that the length of the main shaft can be adjusted, and the application range of the universal joint fork is widened.

Description

TECHNICAL FIELD

[0001] The utility model relates to universal joint fork technical field, concretely relates to a telescopic universal joint fork. BACKGROUND

[0002] Universal joint fork refers to utilize ball type device to realize different direction axle power output, it is also a very important part on car. Universal joint fork and transmission shaft combination is called universal joint transmission device. Universal joint fork includes main shaft connected with transmission shaft and joint fork part connected with cross shaft to carry out universal transmission.

[0003] The prior art patent number CN201810996954.0 discloses a kind of universal joint forks, including body, a pair of prongs are provided at one end of body, the end of body away from prong is provided with lug, spline hole and light hole are further provided on body, spline hole and light hole are coaxial with body, spline hole and light hole are coaxial and communicate and pass through body, spline hole is located at the end of lug, light hole is located at the end of prong, a pair of prongs are each provided with bearing hole, bearing hole is coaxial and perpendicular to spline hole, the inside of prong is provided with widened fork mouth, the outside of prong is provided with step surface, step surface is perpendicular to bearing hole;Threaded hole is provided on lug, one end of threaded hole penetrates lug end face, the other end of threaded hole is coaxially connected with counterbore, the end of counterbore away from threaded hole penetrates the other end face of lug;Threaded hole and counterbore are all perpendicular to spline hole, groove is further provided on body, groove is parallel to the axis of body, the end of groove close to prong is provided with circular hole, groove is communicated with spline hole and light hole.

[0004] But the length of the universal joint fork is fixed, and the length of the universal joint cannot be adjusted according to the demand during use. UTILITY MODEL CONTENTS

[0005] In order to solve the above-mentioned deficiencies in the prior art, the utility model provides a telescopic universal joint fork.

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

[0007] A telescopic universal joint fork, comprising a main shaft and a joint fork part, the joint fork part is fixedly arranged at the front end of the main shaft, the main shaft comprises a fixed shaft fixedly connected with the joint fork part and a sliding shaft slidingly connected with the fixed shaft at the rear of the fixed shaft, the rear end surface of the fixed shaft extends forward and is provided with an adjusting sliding hole, the sliding shaft is matched with the adjusting sliding hole, and the sliding shaft is slidingly arranged in the adjusting sliding hole, a connecting head is fixedly arranged at the rear end of the sliding shaft, a plurality of triangular notches arranged continuously in a wave shape are formed in the upper end of the sliding shaft along the length direction of the sliding shaft, a screw hole communicating with the adjusting sliding hole is arranged in the upper end of the fixed shaft, a bolt is matched and arranged in the screw hole, and the bolt corresponds to the triangular notch.

[0008] Preferably, the adjusting sliding hole and the sliding shaft are both in the direction of the cross section, and the cross section of the connecting head is circular.

[0009] Preferably, the connecting head is provided with at least two limiting convex edges, which are arranged along the length of the connecting head and are uniformly distributed around the circumference of the connecting head.

[0010] Preferably, the surface of the telescopic universal joint yoke is provided with a corrosion-resistant layer, which comprises a polyethylene corrosion-resistant coating and a titanium nano-alloy coating.

[0011] Preferably, the fixed shaft is provided with at least two screw holes, which are uniformly distributed along the length of the adjusting sliding hole, and each screw hole is matched with a bolt.

[0012] Compared with the prior art, the beneficial effects are:

[0013] The utility model discloses simple structure, convenient to use, and the main shaft includes fixed fixed axle and sliding sliding axle, and the length of main shaft can be adjusted by the sliding of sliding axle on fixed axle, and the application range of universal joint yoke is improved. DRAWINGS

[0014] Figure 1 It is the cross section schematic drawing of the utility model.

[0015] Signs: 1, main shaft;2, yoke part;3, fixed axle;4, sliding axle;5, connecting head;6, adjusting sliding hole;7, bolt;8, triangular notch;9, limiting convex edge. DETAILED DESCRIPTION

[0016] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0017] The utility model provides a telescopic universal joint fork, including the main shaft 1 and the fork part 2, the fork part 2 is fixed in the front end of main shaft 1, the main shaft 1 includes the fixed axle 3 with the fixed connection of fork part 2 and the sliding axle 4 in the rear of fixed axle 3 with fixed axle 3 sliding connection, the rear end surface of fixed axle 3 extends forward and is equipped with the adjusting sliding hole 6, the sliding axle 4 is matched with adjusting sliding hole 6, and sliding axle 4 inserts adjusting sliding hole 6 and is slidably arranged, the rear end of sliding axle 4 is fixedly equipped with the connecting head 5, the upper end of sliding axle 4 is equipped with the multiple triangular notches 8 of continuous arrangement in the wavelike shape along its length direction, the upper end of fixed axle 3 is equipped with the screw hole of the communication adjusting sliding hole 6, the screw hole is equipped with the bolt 7 in matching, and the bolt 7 corresponds with triangular notch 8.

[0018] The fork part 2 is connected with the cross shaft to rotate, the connecting head 5 is used to be connected with the transmission shaft, when the length of the universal joint fork is adjusted, the bolt 7 is rotated, the bolt 7 is withdrawn from the triangular notch 8, then the sliding axle 4 can be slid on the fixed axle 3, thereby the overall length of the main shaft 1 is adjusted, after the adjustment is completed, the bolt 7 is tightened, the bolt 7 is inserted into the corresponding triangular notch 8 and is limited and fixed.

[0019] Preferably, the cross section of the adjusting sliding hole 6 and the sliding axle 4 is square, and the cross section of the connecting head 5 is circular. By being square, the sliding axle 4 is prevented from rotating in the adjusting sliding hole 6.

[0020] Preferably, the connecting head 5 is provided with at least two limiting protrusions 9 protruding therefrom, the limiting protrusions 9 are arranged along the length of the connecting head 5, and the at least two limiting protrusions 9 are uniformly distributed around the circumference of the connecting head 5.

[0021] Preferably, the surface of the telescopic universal joint fork is provided with a corrosion-resistant layer, the corrosion-resistant layer comprises a polyethylene anti-corrosion coating and a titanium nano-alloy coating, the polyethylene anti-corrosion coating is arranged on the surface of the telescopic universal joint fork, and the titanium nano-alloy coating is arranged on the surface of the polyethylene anti-corrosion coating. By being provided with the corrosion-resistant layer, the corrosion resistance of the surface of the telescopic universal joint fork is improved.

[0022] Preferably, the fixed axle 3 is provided with at least two screw holes, the at least two screw holes are uniformly distributed along the length of the adjusting sliding hole 6, the distance between adjacent two screw holes is a multiple of the distance between adjacent two triangular notches 8, so that each screw hole can correspond to a triangular notch 8, and the bolt 7 is arranged in each screw hole. By inserting the plurality of bolts 7 into different triangular notches 8, the connection strength between the fixed axle 3 and the sliding axle 4 is improved.

[0023] In the description of the utility model, it is understood that the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is used, or the orientation or positional relationship commonly understood by those skilled in the art, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0024] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0025] Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

Claims

1. A telescopic universal joint fork, characterized in that, The device includes a main shaft (1) and a fork (2). The fork (2) is fixedly located at the front end of the main shaft (1). The main shaft (1) includes a fixed shaft (3) fixedly connected to the fork (2) and a sliding shaft (4) located behind the fixed shaft (3) and slidably connected to the fixed shaft (3). The rear end face of the fixed shaft (3) extends forward and is provided with an adjustment sliding hole (6). The sliding shaft (4) matches the adjustment sliding hole (6) and slides inside the adjustment sliding hole (6). The rear end of the sliding shaft (4) is fixedly provided with a connector (5). The upper end of the sliding shaft (4) is provided with a plurality of triangular notches (8) arranged in a wave-like continuous manner along its length direction. The upper end of the fixed shaft (3) is provided with a screw hole that connects to the adjustment sliding hole (6). A bolt (7) is matched in the screw hole and corresponds to the triangular notch (8).

2. The telescopic universal joint fork as described in claim 1, characterized in that, The cross-sections of the adjusting sliding hole (6) and the sliding shaft (4) are both oriented, and the cross-section of the connector (5) is circular.

3. The telescopic universal joint fork as described in claim 2, characterized in that, The connector (5) has at least two limiting protrusions (9) protruding out. The limiting protrusions (9) are arranged along the length of the connector (5), and the at least two limiting protrusions (9) are evenly distributed around the circumference of the connector (5).

4. The telescopic universal joint fork as described in claim 1, characterized in that, The surface of the telescopic universal joint fork is provided with a corrosion-resistant layer, which includes a polyethylene anti-corrosion coating and a titanium nano-alloy coating. The polyethylene anti-corrosion coating is provided on the surface of the telescopic universal joint fork, and the titanium nano-alloy coating is provided on the surface of the polyethylene anti-corrosion coating.

5. The telescopic universal joint fork as described in claim 1, characterized in that, At least two screw holes are provided on the fixed shaft (3), and the at least two screw holes are evenly distributed along the length direction of the adjusting slide hole (6), and a bolt (7) is provided in each screw hole.

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