Interlink assembly structure

Abstract

The utility model relates to a serial assembly structure which comprises a transmission shaft, and a sliding sleeve is sleeved on the outer surface of the transmission shaft. According to the serial assembly structure, when the sliding sleeve is installed on the outer surface of the transmission shaft, the sliding sleeve slides to the top of the limiting baffle and then is fixedly connected through the two limiting bolts, and the sliding sleeve and the transmission shaft are fixedly connected through the fixing bolts, so that the bearing capacity of the fixing bolts is reduced in the rotating process, and the service life of the fixing bolts is longer; when the inner star wheel is installed at the bottom of a transmission shaft, the inner star wheel is pushed to the surface of a barrier plate to be attached by aligning six square holes, six limiting rods are inserted into the square holes, and then limiting blocks connected with a limiting bottom plate are clamped into positioning block grooves and fixed through bottom plate fixing screws; and the six limiting rods are fixedly connected through the inner star wheel fixing screws, so that the inner star wheel is convenient to disassemble when being maintained, the connection stability is improved, and compared with existing fixed connection, the mode is more practical.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to a chain assembly structure. Background Art

[0002] In front-engine rear-wheel drive vehicles, the universal joint transmission device is installed between the transmission output shaft and the input shaft of the drive axle final reducer; while the front-engine front-wheel drive vehicle omits the drive shaft, and the universal joint is installed between the front axle half shaft and the wheel, which is responsible for both driving and steering. The constant velocity universal joint is a mechanism that connects two shafts with non-coincident axes and transmits motion at the same angular velocity. It can overcome the non-constant velocity problem of ordinary cross-axis universal joints and is particularly suitable for use in steering drive axles.

[0003] According to Chinese patent CN216951359U, a star-shaped sleeve with a chain assembly structure can keep the star-shaped sleeve body and the sliding sleeve connected at all times by setting a telescopic rod between the star-shaped sleeve body and the sliding sleeve, which can effectively prevent the star-shaped sleeve body and the inner star wheel from falling off easily when the gap between the star-shaped sleeve body and the transmission shaft is large, which may cause serious accidents. The setting of the telescopic rod can also change the length as the transmission shaft rotates, thereby reducing the problem of interference between devices. The steel ball set between the wear-resistant layer set on the surface of the ball slide and the limit hole can reduce the wear of the steel ball, thereby extending the service life of the equipment. The arc-shaped mouth is in contact with the steel ball, increasing the contact area, so that it fits more closely to reduce friction and reduce wear.

[0004] In the above-mentioned device, the transmission shaft is fixedly connected to the ball slide through the gear rod, so that when the ball slide is replaced, the fixed connection is not convenient to disassemble, which affects the service life of the star sleeve and the ball; and the connection between the sleeve and the transmission shaft is limited only by bolts. During the rotation of the star sleeve and the inner star wheel, the bolts inside the sleeve are prone to breakage due to the concentrated gravitational force, which reduces the reliability of the connection. Therefore, a chain assembly structure is proposed to solve the above problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a chain assembly structure, which has the advantages that after the inner star wheel is connected to the transmission shaft, it is easy to disassemble for maintenance, and at the same time the connection between the sliding sleeve and the transmission shaft is more reliable, and breakage is avoided as much as possible. It solves the problem that in the existing chain assembly structure, the fixed connection between the transmission shaft and the inner star wheel is not easy to disassemble; the sliding sleeve and the transmission shaft are only fixed and limited by bolts, and due to stress concentration during rotation, it is easy to break, resulting in a reduced service life.

[0006] To achieve the above object, the utility model provides the following technical solutions: a chain assembly structure, comprising a transmission shaft, the outer surface of which is sleeved with a sliding sleeve, and the outer surface of which is provided with a limit position assembly;

[0007] The limit assembly includes a limit baffle, which is fixedly connected to the outer surface of the transmission shaft, and two limit bolts are penetrated inside the limit baffle. The outer surface of the transmission shaft is slidably connected to the inner star wheel, and the outer surface of the transmission shaft is fixedly connected to a baffle plate, and the bottom of the baffle plate is fixedly connected to a plurality of limit rods. The transmission shaft is internally clamped with a limit block, and the bottom of the limit block is fixedly connected to a limit bottom plate, and a bottom plate fixing screw is penetrated inside the limit bottom plate, and a plurality of inner star wheel fixing screws are penetrated through the limit bottom plate.

[0008] Furthermore, a fixing bolt is passed through the interior of the sliding sleeve, and the sliding sleeve is detachably connected to the transmission shaft via the fixing bolt.

[0009] Furthermore, a connecting through hole is opened inside the limit baffle, and both of the two connecting through holes penetrate and extend to the inside of the sliding sleeve, and both of the two limiting bolts are located inside the sliding sleeve through the connecting through holes.

[0010] Furthermore, the number of the plurality of limit rods is six, and the shape of the limit rods is all square rods. The interior of the inner star wheel is provided with six square holes, and the six limit rods are all located inside the inner star wheel through the six square holes.

[0011] Furthermore, six circular holes are opened inside the inner star wheel, and a plurality of inner star wheel fixing screws are all passed through the circular holes and arranged inside the inner star wheel.

[0012] Furthermore, the six inner star wheel fixing screws are threadedly connected to the six limiting rods.

[0013] Furthermore, a positioning block groove is opened inside the transmission shaft, and the limit block is located inside the transmission shaft through the positioning block groove. The limit block is in the shape of a square block. The bottom plate fixing screw passes through the limit block and extends to the inside of the transmission shaft. The bottom plate fixing screw is threadedly connected to the transmission shaft.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The interlocking assembly structure has the advantages that when the sliding sleeve is installed on the outer surface of the transmission shaft, the sliding sleeve is slid to the top of the limit baffle and then fixedly connected via two limit bolts, and the fixing bolts fix the sliding sleeve to the transmission shaft, thereby reducing the bearing capacity of the fixing bolts during rotation and extending its service life; when the inner star wheel is installed on the bottom of the transmission shaft, the inner star wheel is pushed to fit the surface of the baffle plate by aligning the six square holes, the six limit rods are inserted into the inside of the square holes, and then the limit block connected to the limit base plate is clamped into the positioning block groove and fixed via the base plate fixing screws, while the six limit rods are fixedly connected via the inner star wheel fixing screws, thereby facilitating the removal of the inner star wheel for maintenance and improving the stability of the connection. Compared with the existing fixed connection, this method is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the main cross-sectional view of the structure of the utility model;

[0017] Figure 2 This is a front view of the transmission shaft and the sliding sleeve of the utility model structure;

[0018] Figure 3 This is a top view of the limit bottom plate of the structure of the utility model;

[0019] Figure 4 This is a three-dimensional diagram of the ball slideway structure of the utility model

[0020] In the figure: 1. transmission shaft; 2. sliding sleeve; 3. limit baffle; 4. limit bolt; 5. fixing bolt; 6. inner star wheel; 7. blocking plate; 8. limit rod; 9. limit block; 10. limit bottom plate; 11. bottom plate fixing screw; 12. inner star wheel fixing screw; 13. positioning block groove; 14. round hole; 15. square hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 In this embodiment, a chain assembly structure includes a transmission shaft 1, a sleeve 2 is sleeved on the outer surface of the transmission shaft 1, a fixing bolt 5 is passed through the interior of the sleeve 2, the sleeve 2 is detachably connected to the transmission shaft 1 through the fixing bolt, and a limiting component is set on the outer surface of the transmission shaft 1.

[0023] The limit assembly includes a limit baffle 3 , which is fixedly connected to the outer surface of the transmission shaft 1 . A connecting through hole is provided inside the limit baffle 3 , and both connecting through holes penetrate and extend to the inside of the sliding sleeve 2 .

[0024] Two limiting bolts 4 are inserted into the limiting baffle 3 , and the two limiting bolts 4 are both located inside the sliding sleeve 2 through the connecting through holes.

[0025] The outer surface of the transmission shaft 1 is slidably connected to the inner star wheel 6, and the outer surface of the transmission shaft 1 is fixedly connected to a blocking plate 7. The bottom of the blocking plate 7 is fixedly connected to a plurality of limit rods 8. The number of the plurality of limit rods 8 is six, and the shape of the plurality of limit rods 8 is square rods. Six square holes 15 are opened inside the inner star wheel 6, and the six limit rods 8 are all located inside the inner star wheel 6 through the six square holes 15.

[0026] A limit block 9 is clamped inside the transmission shaft 1 . A positioning block groove 13 is provided inside the transmission shaft 1 . The limit block 9 is in the shape of a square block. The limit block 9 is located inside the transmission shaft 1 through the positioning block groove 13 .

[0027] The bottom of the limit block 9 is fixedly connected to the limit base plate 10, and a base plate fixing screw 11 is passed through the interior of the limit base plate 10. The base plate fixing screw 11 passes through the limit block 9 and extends to the interior of the transmission shaft 1. The base plate fixing screw 11 is threadedly connected to the transmission shaft 1. The limit base plate 10 is passed through a plurality of inner star wheel fixing screws 12, and six inner star wheel fixing screws 12 are threadedly connected to the six limit rods 8.

[0028] Six circular holes 14 are formed inside the inner star wheel 6 , and a plurality of inner star wheel fixing screws 12 are inserted into the inner star wheel 6 through the circular holes 14 .

[0029] In this embodiment, a square hole 15 is opened inside the lower inner star wheel 6, so that the inner star wheel 6 can not only be engaged with the transmission shaft 1 through the tooth slot hole, but also can be connected through the cooperation of the limit rod 8 and the square hole 15, to ensure that if the tooth slot hole is damaged during rotation, it can be compensated by the limit rod 8, to ensure that the device can be used to avoid being unusable as much as possible.

[0030] In this embodiment, by providing a positioning block groove 13 inside the transmission shaft 1, when the limiting base plate 10 is fixedly connected to the transmission shaft 1, misalignment of the inner star wheel 6 is avoided as much as possible, thereby improving the stability of the connection.

[0031] The working principle of the above embodiment is:

[0032] The interlocking assembly structure is such that when the sleeve 2 is installed on the outer surface of the transmission shaft 1, the sleeve 2 is slid to the top of the limit baffle 3 and then fixedly connected via two limit bolts 4, and the fixing bolts 5 fix the sleeve 2 to the transmission shaft 1, thereby reducing the bearing capacity of the fixing bolts 5 during rotation and extending its service life; when the inner star wheel 6 is installed on the bottom of the transmission shaft 1, the inner star wheel 6 is pushed to fit the surface of the baffle plate 7 by aligning the six square holes 15, the six limit rods 8 are inserted into the inside of the square holes 15, and then the limit block 9 connected to the limit base plate 10 is clamped into the positioning block groove 13 and fixed via the base plate fixing screw 11, while the six limit rods 8 are fixedly connected via the inner star wheel fixing screws 12, so that the inner star wheel 6 is easy to disassemble when it is maintained, and the stability of the connection is improved. Compared with the existing fixed connection, this method is more practical.

[0033] It should be noted that the standard parts used in the application can be purchased from the market, special-shaped parts can be customized according to the description in the specification and drawings, and the specific connection methods of each part adopt mature bolts, rivets, welding, etc. in the prior art, and conventional means. Machinery, parts and equipment all adopt conventional models in the prior art; plus the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chain assembly structure, comprising a transmission shaft (1), characterized in that: The outer surface of the transmission shaft (1) is sleeved with a sliding sleeve (2), and the outer surface of the transmission shaft (1) is provided with a limiting component; The limit assembly comprises a limit baffle (3), the limit baffle (3) is fixedly connected to the outer surface of the transmission shaft (1), two limit bolts (4) are inserted into the limit baffle (3), the outer surface of the transmission shaft (1) is slidably connected to an inner star wheel (6), the outer surface of the transmission shaft (1) is fixedly connected to a baffle plate (7), the bottom of the baffle plate (7) is fixedly connected to a plurality of limit rods (8), the inside of the transmission shaft (1) is clamped with a limit block (9), the bottom of the limit block (9) is fixedly connected to a limit bottom plate (10), the inside of the limit bottom plate (10) is inserted with a bottom plate fixing screw (11), and the limit bottom plate (10) is inserted with a plurality of inner star wheel fixing screws (12).

2. A chain assembly structure according to claim 1, characterized in that: A fixing bolt (5) is inserted into the interior of the sliding sleeve (2), and the sliding sleeve (2) is detachably connected to the transmission shaft (1) via the fixing bolt.

3. A serial assembly structure according to claim 1, characterized in that: A connecting through hole is provided inside the limit baffle (3), and both of the connecting through holes penetrate and extend into the interior of the sliding sleeve (2), and both of the limiting bolts (4) are located inside the sliding sleeve (2) through the connecting through holes.

4. The interlocking assembly structure according to claim 1, characterized in that: The number of the plurality of limit rods (8) is six, and the shape of the limit rods is a square rod. The interior of the inner star wheel (6) is provided with six square holes (15), and the six limit rods (8) are located inside the inner star wheel (6) through the six square holes (15).

5. The interlocking assembly structure according to claim 1, characterized in that: Six circular holes (14) are opened inside the inner star wheel (6), and a plurality of inner star wheel fixing screws (12) are inserted into the inner star wheel (6) through the circular holes (14).

6. The interlocking assembly structure according to claim 1, characterized in that: The six inner star wheel fixing screw rods (12) are threadedly connected to the six limiting rods (8).

7. The interlocking assembly structure according to claim 1, characterized in that: A positioning block groove (13) is provided inside the transmission shaft (1); the limiting block (9) is in the shape of a square block; the limiting block (9) is located inside the transmission shaft (1) through the positioning block groove (13); the bottom plate fixing screw (11) passes through the limiting block (9) and extends to the inside of the transmission shaft (1); the bottom plate fixing screw (11) is threadedly connected to the transmission shaft (1).

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