Shaft connecting structure

Abstract

The utility model discloses a shaft connection structure, and particularly relates to the technical field of shaft connection, the shaft connection structure comprises an upper pull rod and a lower pull rod, one end of the upper pull rod is fixedly provided with a first joint, one end of the lower pull rod is fixedly provided with a second joint, and annular grooves are arranged between the upper pull rod and the first joint and between the lower pull rod and the second joint. A driving cavity is formed in the first connector, and an inserting groove is formed in one side of the driving cavity. According to the shaft connecting structure, in actual work, the connecting ring is pulled, the inserting block and the inserting plate are inserted into the inserting groove till the inserting plate enters the driving cavity, then the lower pull rod is rotated to drive the inserting plate to rotate in the driving cavity, the fastening hole and the fixing hole are made to coincide, the connecting ring is loosened, and the inserting plate is inserted into the inserting groove. When the upper pull rod and the lower pull rod are connected, the first fastening head is inserted into the overlapped fastening hole and fixing hole, and then the first hoop plate and the second hoop plate sleeve the joint of the first joint and the second joint, so that the upper pull rod and the lower pull rod are conveniently connected, and the connection is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of shaft connection, and specifically relates to a shaft connection structure. BACKGROUND

[0002] The coal mill is a commonly used equipment in the thermal power plant, can break and grind the coal block into the coal powder, is the important auxiliary equipment of the coal powder furnace, and the pull rod is an important component on the loading device of the coal mill, and the upper pull rod is connected with the lower pull rod through the connecting structure when the pull rod is used.

[0003] Through the search, for example, the utility model with the announcement number CN206361038U discloses a connecting shaft connecting structure, and when the upper pull rod and the lower pull rod are connected, the threaded rod of the head end is generally inserted into the threaded hole of the tail end, the upper pull rod and the lower pull rod are connected into a long rod through the threaded connection, but only through the threaded connection, the thread is easy to wear after long time use and causes the inconvenient connection, therefore, in order to solve the above defects, the present application provides a kind of shaft connecting structure. UTILITY MODEL CONTENT

[0004] Therefore, the utility model provides a kind of shaft connecting structure to solve the inconvenient connection caused by the wear of thread after long time use of the connecting structure in prior art through threaded connection.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A kind of shaft connecting structure, including upper pull rod and lower pull rod, one end of the upper pull rod is fixedly installed with first joint, one end of the lower pull rod is fixedly installed with second joint, and annular groove is set up between the upper pull rod and the first joint and between the lower pull rod and the second joint, driving cavity is set up in the inside of the first joint, and plug-in slot is set up in the side of driving cavity;

[0007] The second joint is fixedly installed with plug-in block in the middle of the end away from the lower pull rod, four plug-in plates are fixedly installed in the end away from the second joint of the plug-in block, fastening hole is set up in the side of four plug-in plates, four fixed holes are set up in the inside of the driving cavity, four stop blocks are fixedly installed in the side of fixed hole in the inside of the driving cavity, and fixed assembly is arranged in the inside of the driving cavity.

[0008] Preferably, the fixed assembly includes four first movable holes opened on one side inside the driving cavity, the first spring is fixedly installed inside the four first movable holes, one end of the first spring close to the opening of the first movable hole is fixedly installed with a first fastening head, a hidden groove is opened on the outer surface of the first joint close to one side of the upper pull rod, the first connecting rod is fixedly installed at one end of the four first fastening heads located at one end of the first spring and extends through the inside of the first spring, the four first connecting rods extend into the inside of the hidden groove, and the connecting ring is fixedly installed at the ends of the four first connecting rods extending into the inside of the hidden groove.

[0009] Preferably, the outer surfaces of the first joint and the second joint are provided with a first hoop plate and a second hoop plate, the top surfaces of the second connecting blocks are fixedly installed with second connecting blocks on both sides, the top surfaces of the two second connecting blocks are rotatably connected with limit plates on one side, the top surfaces of the two second connecting blocks are fixedly installed with fixed rods in the middle, and the sides of the two fixed rods are provided with connecting holes.

[0010] Preferably, the opposite sides of the first hoop plate and the second hoop plate are fixedly installed with two installation rods, and the outer surfaces of the two annular grooves are provided with installation holes on both sides.

[0011] Preferably, the bottom surfaces of the first hoop plate are fixedly installed with first connecting blocks on both sides, the top surfaces of the two first connecting blocks are provided with limit holes on one side, and the cross-sectional shapes of the limit plate and the limit hole are both rectangular.

[0012] Preferably, the top surfaces of the two first connecting blocks are provided with insertion holes in the middle, the inside of the two first connecting blocks is provided with second movable holes on one side, the second spring is fixedly installed inside the two second movable holes, and the second fastening head is fixedly installed at one end of the two second springs close to the opening of the second movable hole.

[0013] Preferably, the second connecting rod is fixedly installed at the middle of one end of the two second fastening heads located at one end of the second spring and extends through the inside of the second spring.

[0014] Preferably, one end of the two second connecting rods extends to the outside of the two first connecting blocks respectively, and the second connecting rod is fixedly installed with a handle at one end extending to the outside of the first connecting block.

[0015] The utility model has the advantages of:

[0016] The utility model discloses a kind of shaft connection structures, by setting first joint and second joint, in actual work, the outside of hidden groove is pulled to connection ring, block is inserted into slot with plugboard, until plugboard enters drive cavity, then rotates lower pull rod to drive plugboard to rotate inside drive cavity, make fastening hole and fixed hole coincide, and loosen connection ring, it will make first fastening head insert into coincident fastening hole and fixed hole, then first hoop plate and second hoop plate are set in the connecting place of first joint and second joint, to facilitate the connection of upper pull rod and lower pull rod, so that connection is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the description of embodiments or prior art. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other implementation drawings can be derived from the provided drawings without creative labor.

[0018] The structures, proportions, sizes and the like disclosed in the specification are only used to cooperate with the content disclosed in the specification for understanding and reading by those skilled in the art, and are not used to limit the implementation conditions of the utility model, so they do not have substantial technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that the utility model can produce, should still fall within the scope covered by the technical content disclosed by the utility model.

[0019] Figure 1 It is the overall structural diagram of the utility model;

[0020] Figure 2 It is the second joint structure schematic view of the utility model;

[0021] Figure 3 It is the second joint cross-section structure schematic view of the utility model;

[0022] Figure 4 It is the Figure 3 It is the enlarged structure schematic view of A place;

[0023] Figure 5 It is the first joint cross-section structure schematic view of the utility model;

[0024] Figure 6 It is the second hoop plate structure schematic view of the utility model;

[0025] Figure 7 It is the first connecting block cross-section structure schematic view of the utility model.

[0026] In the figure: 1, the upper pull rod; 2, the lower pull rod; 3, the first hoop plate; 4, the second hoop plate; 101, the first joint; 102, the annular groove; 103, the insertion slot; 104, the driving cavity; 201, the second joint; 202, the insertion block; 203, the insertion plate; 204, the fastening hole; 1021, the mounting hole; 1041, the first movable hole; 1042, the first spring; 1043, the first fastening head; 1044, the first connecting rod; 1045, the connecting ring; 1046, the hidden groove; 1047, the fixing hole; 1048, the stop block; 301, the limiting hole; 302, the first connecting block; 401, the second connecting block; 402, the limiting plate; 403, the connecting hole; 404, the fixing rod; 405, the mounting rod; 3021, the insertion hole; 3022, the second movable hole; 3023, the second spring; 3024, the second fastening head; 3025, the second connecting rod. DETAILED DESCRIPTION

[0027] The embodiments of the present application will be described in detail by the specific embodiments, and the person skilled in the art can easily understand other advantages and effects of the present application from the disclosed content of the specification. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the present application.

[0028] The utility model discloses a kind of axle connection structures, as shown in Figures 1-7 The utility model discloses a kind of axle connection structures, as shown in

[0029] The inside of the first joint 101 is provided with a driving cavity 104, and the driving cavity 104 is provided with an insertion slot 103 on one side. The second joint 201 is fixedly installed with an insertion block 202 in the middle of the end away from the lower pull rod 2. Four insertion plates 203 are fixedly installed on the end of the insertion block 202 away from the second joint 201. The insertion block 202 can be inserted into the insertion slot 103.

[0030] And one side of the four plug plates 203 is provided with a fastening hole 204, and the inside of the driving cavity 104 is provided with four fixed holes 1047, and four stoppers 1048 are fixedly installed on one side of the inside of the driving cavity 104. The plug block 202 and the plug plate 203 are inserted into the slot 103 until the plug plate 203 enters the driving cavity 104, then the lower pull rod 2 is rotated to drive the plug plate 203 to rotate inside the driving cavity 104, until the four plug plates 203 respectively contact with the four stoppers 1048, so that the fastening hole 204 coincides with the fixed hole 1047, and the inside of the driving cavity 104 is provided with a fixing assembly.

[0031] The fixing assembly comprises four first movable holes 1041 provided on the inside of the driving cavity 104 away from the fixed hole 1047, and the inside of the four first movable holes 1041 is fixedly installed with a first spring 1042, and one end of the four first springs 1042 close to the opening of the first movable hole 1041 is fixedly installed with a first fastening head 1043. When the first fastening head 1043 moves to one side of the first spring 1042, the first spring 1042 is pressed.

[0032] The outer surface of the first joint 101 is provided with a hidden groove 1046 close to the upper pull rod 1, one end of the four first fastening heads 1043 close to the first spring 1042 is fixedly installed with a first connecting rod 1044, and the four first connecting rods 1044 extend into the inside of the hidden groove 1046, and the four first connecting rods 1044 pass through the inside of the four first springs 1042 respectively.

[0033] The four first connecting rods 1044 are fixedly installed with a connecting ring 1045 at one end extending into the hidden groove 1046, and the user pulls the connecting ring 1045 to move the four first connecting rods 1044 simultaneously.

[0034] The outer surfaces of the first joint 101 and the second joint 201 are provided with a first hoop plate 3 and a second hoop plate 4, and the first hoop plate 3 and the second hoop plate 4 can be inserted into the two annular grooves 102 to hold the connected first joint 101 and the second joint 201.

[0035] The top surface of the second hoop plate 4 is fixedly installed with a second connecting block 401 on both sides, and the top surface of the two second connecting blocks 401 is rotatably connected with a limiting plate 402 on one side, and the top surface of the two second connecting blocks 401 is fixedly installed with a fixed rod 404 in the middle, and the one side of the two fixed rods 404 is provided with a connecting hole 403.

[0036] The opposite side of the first hoop plate 3 and the second hoop plate 4 is fixedly installed with two installation rods 405, and the outer surface of the two annular grooves 102 is provided with installation holes 1021 on both sides, when the first hoop plate 3 and the second hoop plate 4 hold the first joint 101 and the second joint 201 after connection, four installation rods 405 will be inserted into four installation holes 1021 respectively.

[0037] The bottom surface of the first hoop plate 3 is fixedly installed with a first connecting block 302 on both sides, and the top surface of the two first connecting blocks 302 is provided with a limiting hole 301 on one side, and the cross-sectional shape of the limiting plate 402 and the limiting hole 301 is rectangular, when the limiting plate 402 passes through the limiting hole 301, the limiting plate 402 is rotated to make it not coincide with the limiting hole 301, the first hoop plate 3 and the second hoop plate 4 can be preliminarily connected.

[0038] The top surface of the two first connecting blocks 302 is provided with a insertion hole 3021 in the middle, and the inside of the two first connecting blocks 302 is provided with a second movable hole 3022 on one side, and the inside of the two second movable holes 3022 is fixedly installed with a second spring 3023, and the end of the two second springs 3023 close to the opening of the second movable hole 3022 is fixedly installed with a second fastening head 3024, when the second fastening head 3024 moves to the side of the second spring 3023, the second spring 3023 will be squeezed.

[0039] When the limiting plate 402 passes through the limiting hole 301, the fixed rod 404 will be inserted into the insertion hole 3021, and the second spring 3023 can push the second fastening head 3024 to be inserted into the connecting hole 403, so as to complete the connection of the first hoop plate 3 and the second hoop plate 4.

[0040] The middle of the end of the two second fastening heads 3024 located on one end of the second spring 3023 is fixedly installed with a second connecting rod 3025, and the two second fastening heads 3024 are inserted into the inside of the two second springs 3023 respectively, when the user pulls the second connecting rod 3025, the second fastening head 3024 will be moved.

[0041] The two ends of the two second connecting rods 3025 extend to the outside of the two first connecting blocks 302 respectively, and the two ends of the two second connecting rods 3025 extending to the outside of the first connecting block 302 are fixedly installed with a handle, the user can pull the second connecting rod 3025 by holding the handle, so as to move the second connecting rod 3025.

[0042] The working principle of the utility model is: the user pulls the connecting ring 1045, simultaneously drives four first connecting rods 1044 to move, so that four first fastening heads 1043 can extrude four first springs 1042 respectively, then inserts the plug block 202 and the plug plate 203 into the slot 103, until the plug plate 203 enters the drive cavity 104, then rotates the lower pull rod 2 to drive the plug plate 203 to rotate inside the drive cavity 104, until four plug plates 203 contact four stoppers 1048 respectively, so that the fastening hole 204 and the fixing hole 1047 can coincide, and the connecting ring 1045 is loosened, the extruded first spring 1042 can make the first fastening head 1043 insert into the coincided fastening hole 204 and the fixing hole 1047, then uses the first hoop plate 3 and the second hoop plate 4 to hold the connected first joint 101 and the second joint 201, four mounting rods 405 can be inserted into four mounting holes 1021 respectively, the limiting plate 402 can pass through the limiting hole 301 in the process, then rotates the limiting plate 402 to make it not coincide with the limiting hole 301, so that the first hoop plate 3 and the second hoop plate 4 can be initially connected, and the fixing rod 404 can be inserted into the insertion hole 3021, and the second spring 3023 can push the second fastening head 3024 to make it insert into the connecting hole 403, so as to complete the connection of the first hoop plate 3 and the second hoop plate 4.

[0043] Although the utility model has been described in detail above with general description and specific embodiments, some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the utility model all belong to the scope of protection required by the utility model.

Claims

1. A shaft connection structure, comprising an upper pull rod (1) and a lower pull rod (2), characterized in that: One end of the upper pull rod (1) is fixedly installed with a first connector (101), and one end of the lower pull rod (2) is fixedly installed with a second connector (201). Annular grooves (102) are provided between the upper pull rod (1) and the first connector (101) and between the lower pull rod (2) and the second connector (201). A drive cavity (104) is provided inside the first connector (101), and a slot (103) is provided on one side of the drive cavity (104). A plug (202) is fixedly installed at the middle of the end of the second connector (201) away from the pull rod (2). Four plug plates (203) are fixedly installed at the end of the plug (202) away from the second connector (201). Fastening holes (204) are opened on one side of each of the four plug plates (203). Four fixing holes (1047) are opened on one side of the inside of the drive cavity (104). Four stops (1048) are fixedly installed on one side of the inside of the drive cavity (104). A fixing component is provided on one side of the inside of the drive cavity (104).

2. The shaft connection structure according to claim 1, characterized in that: The fixing assembly includes four first movable holes (1041) opened on one side inside the drive cavity (104). A first spring (1042) is fixedly installed inside each of the four first movable holes (1041). A first fastening head (1043) is fixedly installed at one end of each of the four first springs (1042) near the opening of the first movable hole (1041). A hidden groove (1046) is opened on the outer surface of the first connector (101) near the upper pull rod (1). A first connecting rod (1044) is fixedly installed at one end of each of the four first fastening heads (1043) located in the first spring (1042). The first connecting rod (1044) passes through the inside of the first spring (1042). The four first connecting rods (1044) extend into the inside of the hidden groove (1046). A connecting ring (1045) is fixedly installed at one end of each of the four first connecting rods (1044) extending into the hidden groove (1046).

3. The shaft connection structure according to claim 1, characterized in that: The outer surfaces of the first connector (101) and the second connector (201) are provided with a first hoop plate (3) and a second hoop plate (4). The top surfaces of the second hoop plate (4) are fixedly installed with second connecting blocks (401) on both sides. The top surfaces of the two second connecting blocks (401) are rotatably connected with limit plates (402). The top surfaces of the two second connecting blocks (401) are fixedly installed with fixing rods (404) in the middle. The two fixing rods (404) are provided with connecting holes (403) on one side.

4. The shaft connection structure according to claim 3, characterized in that: Two mounting rods (405) are fixedly installed on the opposite side of the first hoop (3) and the second hoop (4), and mounting holes (1021) are opened on both sides of the outer surface of the two annular grooves (102).

5. The shaft connection structure according to claim 3, characterized in that: The first connecting block (302) is fixedly installed on both sides of the bottom surface of the first hoop (3). The top surface of the two first connecting blocks (302) is provided with a limiting hole (301). The cross-sectional shape of the limiting plate (402) and the cross-sectional shape of the limiting hole (301) are both rectangular.

6. The shaft connection structure according to claim 5, characterized in that: Each of the two first connecting blocks (302) has an insertion hole (3021) in the middle of its top surface. Each of the two first connecting blocks (302) has a second movable hole (3022) on one side inside. Each of the two second movable holes (3022) has a second spring (3023) fixedly installed inside. Each of the two second springs (3023) has a second fastening head (3024) fixedly installed at one end near the opening of the second movable hole (3022).

7. The shaft connection structure according to claim 6, characterized in that: The two second fastening heads (3024) are each fixedly mounted with a second connecting rod (3025) at the middle of one end of the second spring (3023), and the second connecting rod (3025) passes through the interior of the second spring (3023).

8. The shaft connection structure according to claim 7, characterized in that: One end of each of the two second connecting rods (3025) extends to the outside of the two first connecting blocks (302), and a handle is fixedly installed on the end of each of the two second connecting rods (3025) extending to the outside of the first connecting block (302).

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