Combined spline housing

Abstract

The utility model belongs to the technical field of spline sleeves, and discloses a combined spline sleeve which comprises a spline shaft, a first spline sleeve is connected to an outer side spline of the spline shaft, a second spline sleeve is arranged on one side of the first spline sleeve in an attached mode, a sliding groove is formed in the first spline sleeve, a sliding block is connected to the interior of the sliding groove in a sliding mode, and the second spline sleeve is connected to the sliding block in a sliding mode. A spring is fixedly connected to one side of the sliding block, a connecting block is fixedly connected to the end, away from the sliding block, of the spring, a telescopic block is fixedly connected to the side, away from the spring, of the connecting block, a first bolt is spirally connected to the middle of the first spline sleeve, and a second bolt is spirally connected to the end, close to the first spline sleeve, of the second spline sleeve. By means of the technical scheme, the problems that in the prior art, when spline housings are connected, connecting pieces need to be additionally arranged between the spline housings, the two spline housings cannot be directly connected together, the connecting space is increased, limitation is high, and use is inconvenient are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to spline sleeve technical field, and specifically is a combined spline sleeve. BACKGROUND

[0002] Spline sleeve is an important part in mechanical transmission, it is mainly used for with spline shaft cooperation, realizes torque transmission, axial positioning and movement guiding function, it is divided into: rectangular spline sleeve, involute spline sleeve and triangle spline sleeve according to spline tooth shape, and application is very wide.

[0003] Meanwhile, the combined spline sleeve with application number 202220800197.7 comprises a first spline sleeve body and a second spline sleeve body, an annular connecting plate is sleeved on the outer wall of the first spline sleeve body, the annular connecting plate is fixedly connected with the outer wall of the first spline sleeve body, a connecting sleeve is slidably connected to the second spline sleeve body, a plurality of clamping blocks are fixedly connected to the side wall of the connecting sleeve in a circumferential direction, a plurality of clamping grooves are formed in the side wall of the annular connecting plate in a circumferential direction, a plurality of counterbores are formed in the connecting sleeve in a circumferential direction, a first threaded hole is formed in the annular connecting plate, and a connecting bolt matched with the first threaded hole is arranged in the counterbores. The clamping blocks fixedly connected to the connecting sleeve and the clamping grooves of the annular connecting plate are matched with each other to quickly position the connecting sleeve. The connecting bolt is screwed into the first threaded hole of the annular connecting plate through the counterbores to quickly connect the first spline sleeve body and the second spline sleeve body.

[0004] The existing combined spline sleeve can connect two spline sleeves by arranging a connecting sleeve during use, but it cannot directly and quickly connect the two spline sleeves, has high use limitations, and has low use performance.

[0005] Therefore, the combined spline sleeve is provided for the above problems. UTILITY MODEL CONTENTS

[0006] To solve the problems in the background art, the utility model provides a combined spline sleeve, which has the advantage of directly and quickly connecting two spline sleeves.

[0007] To achieve the above object, the utility model provides the following technical scheme: a combined spline sleeve, comprising a spline shaft, a first spline sleeve connected to the spline shaft on the outside, a second spline sleeve arranged on one side of the first spline sleeve, a sliding groove arranged in the first spline sleeve, a sliding block slidably connected to the inside of the sliding groove, a spring fixedly connected to one side of the sliding block, a connecting block fixedly connected to the end of the spring away from the sliding block, an extension block fixedly connected to the side of the connecting block away from the spring, a first bolt screw-connected to the middle of the first spline sleeve, and a second bolt screw-connected to the end of the second spline sleeve close to the first spline sleeve.

[0008] Preferably, ring grooves are arranged at both ends of the spline shaft, sealing rings are inlaid in the ring grooves, penetrating grooves are arranged in the sealing rings, and the telescopic blocks slide in the penetrating grooves.

[0009] Preferably, a plurality of spline teeth are arranged on the outer side of the spline shaft, and the spline teeth are made of ceramic coating.

[0010] Preferably, a guide groove is arranged on the bottom surface of the sliding groove, and the guide groove is connected with the rolling ball in a rolling mode, and the rolling ball is inlaid in the sliding block.

[0011] Preferably, an inclined groove is arranged in the middle of the sliding groove, and the width of the inclined groove is the same as the diameter of the lower part of the first bolt.

[0012] Preferably, a limiting column is connected in the spring, and one end of the limiting column is fixedly connected with one side of the sliding block.

[0013] Preferably, a lock washer is arranged on the outer side of the first bolt, and the lock washer is inlaid in the first spline sleeve.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. The utility model discloses a telescopic block is arranged, the first bolt is pressed down, the sliding block drives the spring and the connecting block to push the telescopic block, the one end of the telescopic block is embedded in the second spline sleeve, and the position of the telescopic block is fixed through the second bolt, so that the stable connection of the first spline sleeve and the second spline sleeve is realized, no additional connecting piece is needed between the first spline sleeve and the second spline sleeve, the use performance is higher, the spline sleeve of different lengths can be assembled to the spline shaft, and the use space is saved.

[0016] 2. The utility model discloses a sealing ring is arranged, after the first spline sleeve and the second spline sleeve are connected together, the connecting surface is tightly extruded the sealing ring, the connection is more compact, the leakage of the lubricating oil in the inside is effectively prevented, and the use performance is improved. DRAWINGS

[0017] Figure 1 It is the whole structure schematic diagram of the utility model;

[0018] Figure 2 It is the spline sleeve cut structure schematic diagram of the utility model;

[0019] Figure 3 It is the A place structure schematic diagram of the utility model Figure 2 ;

[0020] Figure 4 It is the B place structure schematic diagram of the utility model Figure 2 ;

[0021] Figure 5 It is a schematic diagram of the ball position structure of the utility model.

[0022] In the figure: 1, spline shaft; 2, first spline sleeve; 3, second spline sleeve; 4, sliding groove; 5, sliding block; 6, spring; 7, connecting block; 8, telescopic block; 9, first bolt; 10, second bolt; 11, ring groove; 12, sealing ring; 13, insertion groove; 14, spline tooth; 15, guide groove; 16, ball; 17, inclined groove; 18, limiting column; 19, lock washer. DETAILED DESCRIPTION

[0023] 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, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] As Figures 1 to 5 shown, the utility model provides a combined spline sleeve, including spline shaft 1, the spline shaft 1 outside spline is connected with first spline sleeve 2, and the one side of first spline sleeve 2 is attached with second spline sleeve 3, and the internal structure of first spline sleeve 2 and second spline sleeve 3 is same, convenient to use, and the inside of first spline sleeve 2 is provided with sliding groove 4, and the inside of sliding groove 4 is slidably connected with sliding block 5, and the one side of sliding block 5 is fixedly connected with spring 6, and the end away from sliding block 5 of spring 6 is fixedly connected with connecting block 7, and the one side away from spring 6 of connecting block 7 is fixedly connected with telescopic block 8, and the one end of telescopic block 8 projects in the inside of first spline sleeve 2, convenient for the quick positioning of the connection of first spline sleeve 2 and second spline sleeve 3, and the middle part of first spline sleeve 2 is spirally connected with first bolt 9, and the one end close to first spline sleeve 2 of second spline sleeve 3 is spirally connected with second bolt 10, and the top cap of first bolt 9 and second bolt 10 is embedded in the inside of spline sleeve, convenient for spline sleeve external connecting piece.

[0025] Specifically, the both ends of spline shaft 1 are provided with ring groove 11, the inside of ring groove 11 is inlaid with sealing ring 12, the inside of sealing ring 12 is provided with insertion groove 13, and telescopic block 8 slides in the inside of insertion groove 13, can limit the position of sealing ring 12, prevent it from rotating in the inside of ring groove 11, and the material of sealing ring 12 is fluorine rubber, fluorine rubber has excellent high temperature resistance, oil resistance and chemical corrosion resistance, and is suitable for spline sleeve sealing in high temperature and harsh environment.

[0026] Further, the outer side of the spline shaft 1 is provided with a plurality of spline teeth 14, and the material of the spline teeth 14 is ceramic coating, which has the advantages of high hardness and good wear resistance, can effectively reduce the wear of the spline teeth 14, and improve the service life of the spline shaft 1.

[0027] Further, the bottom surface of the sliding groove 4 is provided with a guide groove 15, the inside of the guide groove 15 is connected with a rolling ball 16, and the rolling ball 16 is embedded in the inside of the sliding block 5. The guide groove 15 can guide the movement of the sliding block 5, and the rolling ball 16 can reduce the friction between the sliding groove 4 and the sliding block 5, reduce wear, and improve the moving efficiency.

[0028] It is worth noting that the middle part of the sliding groove 4 is provided with an inclined groove 17, and the width of the inclined groove 17 is the same as the diameter of the lower part of the first bolt 9, so as to fix the position of the first bolt 9, and avoid the offset of the sliding block 5 when the sliding block 5 is pressed down.

[0029] It is worth noting that the inside of the spring 6 is connected with a limiting column 18, and one end of the limiting column 18 is fixedly connected with one side of the sliding block 5. Under the action of the limiting column 18, the offset and inclination of the limiting column 18 in the process of being extruded can be effectively prevented, so that the spring 6 can effectively exert the elastic force on the connecting block 7 and push it to slide.

[0030] It is worth noting that the outer side of the first bolt 9 is provided with a lock washer 19, and the lock washer 19 is embedded in the inside of the first spline sleeve 2, so as to improve the space utilization rate. The lock washer 19 effectively avoids the loosening of the connection between the first bolt 9 and the first spline sleeve 2 due to rotation and vibration during the use of the spline sleeve, and improves the stability.

[0031] Among them, the sealing ring 12 and the rolling ball 16 are prior art, and will not be repeated; at the same time, the utility model also includes power supply, controller and switch, which are not the main technical points of the patent, and will not be repeated.

[0032] Working principle and process:

[0033] When the worker needs to install the spline sleeve on the spline shaft 1, first, the first spline sleeve 2 can be assembled to the spline shaft 1, if the length of the first spline sleeve 2 is not enough, the second spline sleeve 3 can be assembled to the spline shaft 1, the telescopic block 8 is clamped into the corresponding groove inside the second spline sleeve 3 at one end outside the first spline sleeve 2, and is inserted through the insertion groove 13, the sealing ring 12 is fixed inside the ring groove 11, the position of the sealing ring 12 is fixed, the sealing ring 12 is prevented from rotating inside the ring groove 11, then the first bolt 9 is rotated downward, the first bolt 9 is slid inside the inclined groove 17 of the sliding block 5, the sliding block 5 is slid inside the sliding groove 4, under the action of the ball 16, the sliding block 5 drives the ball 16 embedded at the bottom to slide inside the guide groove 15, the friction between the sliding groove 4 and the sliding block 5 is reduced, the abrasion is reduced, in the process of gradually pressing the first bolt 9, the sliding block 5 gradually exerts pressure on the spring 6, under the action of the limiting column 18, the limiting column 18 is prevented from being deviated and tilted in the process of being pressed, the connecting block 7 can be effectively exerted with the elastic force, the spring 6 drives the connecting block 7 to slide inside the sliding groove 4, the connecting block 7 drives the telescopic block 8 to gradually slide out of the inside of the first spline sleeve 2 and into the inside of the second spline sleeve 3, after the first bolt 9 is tightened, the second bolt 10 is screwed into the inside of the second spline sleeve 3 and is inserted into the inside of the telescopic block 8, the position of the telescopic block 8 is fixed, the first spline sleeve 2 and the second spline sleeve 3 are connected together, the first spline sleeve 2 and the second spline sleeve 3 are prevented from being separated in the process of use, the stability of the whole is improved, the connecting piece is not needed between the first spline sleeve 2 and the second spline sleeve 3 to connect the first spline sleeve 2 and the second spline sleeve 3, the use space is reduced, and the practicality is higher.

[0034] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced. 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 modular spline sleeve comprising a spline shaft (1), characterized in that: The outer side spline shaft (1) is connected with the first spline sleeve (2), one side of the first spline sleeve (2) is connected with the second spline sleeve (3), the inside of the first spline sleeve (2) is provided with the sliding groove (4), the inside of the sliding groove (4) is connected with the sliding block (5), one side of the sliding block (5) is fixedly connected with the spring (6), the end of the spring (6) away from the sliding block (5) is fixedly connected with the connecting block (7), the side of the connecting block (7) away from the spring (6) is fixedly connected with the telescopic block (8), the middle part of the first spline sleeve (2) is screw connected with the first bolt (9), the end of the second spline sleeve (3) close to the first spline sleeve (2) is screw connected with the second bolt (10).

2. A modular spline sleeve as claimed in claim 1, wherein: The both ends of the spline shaft (1) are provided with the ring groove (11), the inside of the ring groove (11) is inlaid with the sealing ring (12), the inside of the sealing ring (12) is provided with the penetrating slot (13), and the telescopic block (8) slides in the penetrating slot (13).

3. The modular spline sleeve of claim 1 wherein: The outside of the spline shaft (1) is provided with a plurality of spline teeth (14), and the material of the spline teeth (14) is ceramic coating.

4. The modular spline sleeve of claim 1 wherein: The bottom surface of the sliding groove (4) is provided with the guide groove (15), the inside of the guide groove (15) is connected with the ball (16), and the ball (16) is inlaid in the inside of the sliding block (5).

5. The modular spline sleeve of claim 1 wherein: The middle part of the sliding groove (4) is provided with the inclined groove (17), and the width of the inclined groove (17) is the same as the diameter of the lower part of the first bolt (9).

6. The modular spline sleeve of claim 1 wherein: The inside of the spring (6) is connected with the limiting column (18), and one end of the limiting column (18) is fixedly connected with one side of the sliding block (5).

7. The modular spline sleeve of claim 1 wherein: The outside of the first bolt (9) is provided with the lock washer (19), and the lock washer (19) is inlaid in the inside of the first spline sleeve (2).

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