A rocker shaft and rocker bearing hot sleeve tool

Abstract

The utility model belongs to tooling technical field, concretely relates to a rocker arm axle and rocker arm support hot jacket use frock, including frock seat, the upper end of frock seat places the support, the inside insertion of support has the axle body, the inside frock seat is equipped with the pivot through bearing, one end of pivot is fixedly connected with the runner, the other end of pivot is fixedly connected with the threaded shaft, the outside of threaded shaft is connected with the axle sleeve through the thread, be provided with the frock seat with the concave surface through setting, the support is placed in the concave surface, can limit the axial direction of support, then set up the baffle that can rotate in the frock seat, can limit the radial direction of support, in addition, set up the combination of threaded shaft and axle sleeve that can adjust rotation in the frock seat, and the end of axle sleeve sets up the connecting frame with the stopper, the stopper can limit the radial direction of axle body in the support, thereby can promote the accuracy of the connection between axle body and support.

Description

Technical Field

[0001] This solution belongs to the field of tooling, specifically involving a tooling for heat fitting of a rocker arm shaft and a rocker arm support. Background Technology

[0002] To facilitate the installation and connection of the rocker arm shaft and the rocker arm support, specific tooling is required.

[0003] A search revealed that in the utility model patent CN204505091U, a tooling for heat fitting of a rocker arm shaft and a rocker arm support is disclosed, including a positioning sleeve and a pin. The positioning sleeve can be detachably and fixedly fitted on the outer circumference of one end of the rocker arm shaft. The height of the positioning sleeve is the same as the standard length of one end of the rocker arm shaft extending out of the rocker arm support. The pin can be inserted into the main oil hole of the rocker arm shaft and the oil hole of the rocker arm support.

[0004] In existing technologies, the axial position of the rocker arm shaft on the rocker arm support is not fixed, which can easily lead to errors in the installation position. Utility Model Content

[0005] The purpose of this solution is to provide a tooling for heat fitting of rocker arm shaft and rocker arm support, so as to solve the problem that in the existing technology, the axial position of the rocker arm shaft on the rocker arm support is not fixed, which easily leads to errors in the installation position.

[0006] To achieve the above objectives, this solution provides a tooling for heat fitting of a rocker arm shaft and a rocker arm support, including a tooling base, a support placed at the upper end of the tooling base, a shaft inserted into the support, a rotating shaft mounted inside the tooling base via a bearing, a rotating wheel fixedly connected to one end of the rotating shaft, a threaded shaft fixedly connected to the other end of the rotating shaft, a bushing threadedly connected to the outer side of the threaded shaft, the bushing penetrating the tooling base and slidably connected to the tooling base, a connecting frame fixedly connected to the bushing, a stop fixedly connected to the end of the connecting frame, the stop abutting against the shaft, a hollow shell fixedly connected to the bushing, and a lubrication mechanism shared between the hollow shell and the bushing.

[0007] The principle of this solution is as follows: During use, the support is placed into the concave surface of the tooling seat, and then the baffle is rotated through the convex pivot pin, so that the baffle blocks the top of the support. This limits the axial and radial movement of the support. Then, the shaft is inserted into the support, and the rotating wheel rotates the shaft, which drives the threaded shaft to rotate. The bushing moves axially along the threaded shaft under the guidance of the hollow shell, guide sleeve, and guide rod. At the same time, the bushing drives the stop block to move through the connecting bracket until it abuts the shaft. This allows adjustment of the depth of the shaft insertion into the support, thereby improving the accuracy of the connection between the shaft and the support. In addition, during the axial movement of the bushing along the threaded shaft, the sliding pin in the lubrication mechanism will retract due to the reaction force of the convex block, thereby squeezing the oil storage sponge through the slider and releasing lubricating oil, which can lubricate the threads between the bushing and the threaded shaft.

[0008] The technical advantages of this solution are as follows: by setting a tooling seat with a concave surface, the support is placed in the concave surface, which can limit the axial movement of the support. Then, a rotatable baffle is set in the tooling seat, which can limit the radial movement of the support. In addition, an adjustable rotating threaded shaft and bushing combination is set in the tooling seat, and a connecting bracket with a stop block is set at the end of the bushing. The stop block can limit the radial movement of the shaft in the support, thereby improving the accuracy of the connection between the shaft and the support.

[0009] By setting a hollow shell on the bushing and setting a lubrication mechanism inside the hollow shell, the sliding pin in the lubrication mechanism will be retracted by the reaction force of the protrusion during the axial movement of the bushing on the threaded shaft. This will squeeze the oil storage sponge through the slider and release the lubricating oil, thus lubricating the threaded joint between the bushing and the threaded shaft.

[0010] Furthermore, a support base is fixedly connected to the upper edge of the tooling base, and a convex pivot pin is rotatably connected to the upper end of the support base. A baffle is fixedly connected to the top of the convex pivot pin, and the baffle abuts against the support base. The baffle can rotate through the convex pivot pin, and when it rotates above the support base, it can limit the radial movement of the support base.

[0011] Furthermore, a support base is fixedly connected to the upper edge of the tooling base, and a convex pivot pin is rotatably connected to the upper end of the support base. A guide sleeve is fixedly connected to the right side of the hollow shell, and a guide rod is slidably connected inside the guide sleeve. The other end of the guide rod is fixedly connected to the inner surface of the tooling base. The guide sleeve and guide rod provide guidance for the relative movement between the bushing and the threaded shaft.

[0012] Furthermore, a support base is fixedly connected to the upper edge of the tooling base, and a convex pivot pin is rotatably connected to the upper end of the support base. The lubrication mechanism includes a slider and an oil reservoir sponge slidably connected inside the hollow shell. The slider and the oil reservoir sponge are in contact with each other. A sliding pin is fixedly connected to the bottom of the slider. The sliding pin passes through the hollow shell and is slidably connected to the hollow shell. The arc end of the sliding pin abuts against the inner surface of the tooling base. A protrusion is fixedly connected to the bottom inner side of the tooling base. The position of the protrusion corresponds to the position of the arc end of the sliding pin. A spring is sleeved on the outer side of the pin body of the sliding pin. Through the setting of the lubrication mechanism, the threaded connection between the bushing and the threaded shaft is automatically lubricated, improving the smoothness of use.

[0013] Furthermore, a support base is fixedly connected to the upper edge of the tooling base, and a convex pivot pin is rotatably connected to the upper end of the support base. One end of the spring is fixedly connected to the slider, and the other end of the spring is fixedly connected to the inner surface of the hollow shell. The spring allows elastic force to be applied to the slider, providing auxiliary resetting.

[0014] Furthermore, a support base is fixedly connected to the upper edge of the tooling base, and a convex pivot pin is rotatably connected to the upper end of the support base. A sealing ring is embedded in the side of the slider, and the sealing ring contacts the inner wall of the hollow shell. The sealing ring increases the sealing performance between the slider and the hollow shell.

[0015] Furthermore, a support base is fixedly connected to the upper edge of the tooling base, and a convex pivot pin is rotatably connected to the upper end of the support base. Oil outlet holes are provided on the side walls of both the hollow shell and the bushing, and these oil outlet holes are interconnected. The positions of the oil outlet holes correspond to the positions of the oil reservoir sponge. The oil outlet holes facilitate the accurate addition of lubricating oil to the threads between the bushing and the threaded shaft. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0017] Figure 2 This is an embodiment of the present utility model. Figure 1 A front sectional view;

[0018] Figure 3 This is an embodiment of the present utility model. Figure 2 Enlarged view of point A;

[0019] Figure 4 This is an embodiment of the present utility model. Figure 1 Schematic diagram of local structure Figure 1 ;

[0020] Figure 5 This is an embodiment of the present utility model. Figure 1 Schematic diagram of local structure Figure 2 ;

[0021] Figure 6 This is an embodiment of the present utility model. Figure 1 Side sectional view of the support base;

[0022] Figure 7 This is an embodiment of the present utility model. Figure 1 Schematic diagram of local structure Figure 3 .

[0023] The following detailed explanation illustrates the specific implementation methods:

[0024] The reference numerals in the accompanying drawings include: tooling base 1, support 2, shaft 3, rotating shaft 4, threaded shaft 5, bushing 6, connecting bracket 7, stop block 8, lubrication mechanism 9, hollow shell 10, guide sleeve 11, guide rod 12, rotating wheel 13, support base 14, raised pin 15, baffle 16, slider 91, oil storage sponge 92, sliding pin 93, spring 94, sealing ring 95, protrusion 96, oil outlet hole 97. Detailed Implementation

[0025] The basic implementation examples are as follows: Figures 1-7 As shown: A tooling for heat fitting of rocker arm shaft and rocker arm support includes a tooling base 1, a support 2 placed on the upper end of the tooling base 1, a concave surface for placing the support 2 on the upper end of the tooling base 1, a shaft body 3 inserted inside the support 2, a rotating shaft 4 installed inside the tooling base 1 through a bearing, a rotating wheel 13 fixedly connected to one end of the rotating shaft 4, a threaded shaft 5 fixedly connected to the other end of the rotating shaft 4, a bushing 6 threadedly connected to the outer side of the threaded shaft 5, the bushing 6 passing through the tooling base 1 and slidably connected to the tooling base 1, a connecting bracket 7 fixedly connected to the bushing 6, a stop 8 fixedly connected to the end of the connecting bracket 7, the stop 8 abutting against the shaft body 3, and a hollow shell 10 fixedly connected to the bushing 6.

[0026] like Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 As shown, a support base 14 is fixedly connected to the upper edge of the tooling base 1. A convex pivot pin 15 is rotatably connected to the upper end of the support base 14. A baffle 16 is fixedly connected to the top of the convex pivot pin 15, and the baffle 16 abuts against the support 2. The baffle 16 can rotate through the convex pivot pin 15. When it rotates above the support 2, it can limit the radial movement of the support 2. A guide sleeve 11 is fixedly connected to the right side of the hollow shell 10. A guide rod 12 is slidably connected inside the guide sleeve 11. The other end of the guide rod 12 is fixedly connected to the inner surface of the tooling base 1. The guide sleeve 11 and the guide rod 12 guide the relative movement between the bushing 6 and the threaded shaft 5.

[0027] like Figure 2 , Figure 3 As shown, a lubrication mechanism 9 is provided between the hollow shell 10 and the bushing 6. The lubrication mechanism 9 provides automatic lubrication for the threaded connection between the bushing 6 and the threaded shaft 5, improving the smoothness of use. The lubrication mechanism 9 includes a slider 91 and an oil storage sponge 92 that are slidably connected inside the hollow shell 10. The slider 91 and the oil storage sponge 92 are in contact with each other. A sliding pin 93 is fixedly connected to the bottom of the slider 91. The sliding pin 93 passes through the hollow shell 10 and is slidably connected to the hollow shell 10. The arc end of the sliding pin 93 abuts against the inner surface of the tooling seat 1. A protrusion 96 is fixedly connected to the bottom inner side of the tooling seat 1. The position of the protrusion 96 corresponds to the position of the arc end of the sliding pin 93. A spring 94 is sleeved on the outside of the pin body of the sliding pin 93. One end of the spring 94 is fixedly connected to the slider 91, and the other end of the spring 94 is fixedly connected to the inner surface of the hollow shell 10. The spring 94 allows the elastic force to be applied to the slider 91, providing auxiliary resetting. A sealing ring 95 is embedded in the side of the slider 91, contacting the inner wall of the hollow shell 10. The sealing ring 95 increases the sealing between the slider 91 and the hollow shell 10. Both the hollow shell 10 and the bushing 6 have oil outlet holes 97 on their side walls, and these holes are interconnected. The positions of the oil outlet holes 97 correspond to the positions of the oil reservoir sponge 92. The oil outlet holes 97 facilitate accurate addition of lubricating oil to the threads between the bushing 6 and the threaded shaft 5.

[0028] The specific implementation process of this utility model is as follows: In use, the support 2 is placed into the concave surface of the tooling base 1, and then the baffle 16 is rotated through the convex pivot pin 15, so that the baffle 16 blocks the top of the support 2, thus limiting the axial and radial movement of the support 2. Then, the shaft 3 is inserted into the support 2, and then the rotating shaft 4 is rotated through the rotating wheel 13. The rotating shaft 4 drives the threaded shaft 5 to rotate, and the bushing 6 moves axially on the threaded shaft 5 under the guidance of the hollow shell 10, the guide sleeve 11, and the guide rod 12. The bushing 6 moves the stop block 8 through the connecting bracket 7 until it contacts the shaft 3. This allows for adjustment of the depth of the shaft 3 inserted into the support 2, thereby improving the accuracy of the connection between the shaft 3 and the support 2. In addition, during the axial movement of the threaded shaft 5, the sliding pin 93 in the lubrication mechanism 9 will be retracted by the reaction force of the protrusion 96, thereby squeezing the oil storage sponge 92 through the slider 91 and releasing the lubricating oil, which can lubricate the threaded joint between the bushing 6 and the threaded shaft 5.

[0029] This solution uses a tooling seat 1 with a concave surface, with the support 2 placed inside the concave surface to limit the axial movement of the support 2. Then, a rotatable baffle 16 is set in the tooling seat 1 to limit the radial movement of the support 2. In addition, a combination of an adjustable rotatable threaded shaft 5 and a bushing 6 is set in the tooling seat 1, and a connecting bracket 8 with a stop block 7 is set at the end of the bushing 6. The stop block 8 can limit the radial movement of the shaft 3 inside the support 2, thereby improving the accuracy of the connection between the shaft 3 and the support 2.

[0030] By setting a hollow shell 10 on the bushing 6, and setting a lubrication mechanism 9 inside the hollow shell 10, during the axial movement of the bushing 6 on the threaded shaft 5, the sliding pin 93 in the lubrication mechanism 9 will be retracted by the reaction force of the protrusion 96, thereby squeezing the oil storage sponge 92 through the slider 91 and releasing the lubricating oil, which can lubricate the threaded joint between the bushing 6 and the threaded shaft 5.

[0031] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A rocker shaft and rocker bearing shrinkage tooling, comprising a tooling base, characterized in that: A support is placed on the upper end of the tooling base. A shaft is inserted into the support. A rotating shaft is installed inside the tooling base via a bearing. A rotating wheel is fixedly connected to one end of the rotating shaft, and a threaded shaft is fixedly connected to the other end of the rotating shaft. A bushing is threadedly connected to the outer side of the threaded shaft. The bushing passes through the tooling base and is slidably connected to the tooling base. A connecting frame is fixedly connected to the bushing. A stop is fixedly connected to the end of the connecting frame. The stop abuts against the shaft. A hollow shell is fixedly connected to the bushing. A lubrication mechanism is provided between the hollow shell and the bushing.

2. The rocker shaft and rocker bearing hot sleeve assembly tool of claim 1, wherein: The upper edge of the tooling base is fixedly connected to a support base, and the upper end of the support base is rotatably connected to a convex pivot pin. The top of the convex pivot pin is fixedly connected to a baffle, and the baffle abuts against the support base.

3. The rocker shaft and rocker bearing hot sleeve assembly tool of claim 1, wherein: A guide sleeve is fixedly connected to the right side of the hollow shell, and a guide rod is slidably connected inside the guide sleeve. The other end of the guide rod is fixedly connected to the inner surface of the tooling base.

4. The rocker shaft and rocker bearing hot set tooling of claim 1, wherein: The lubrication mechanism includes a slider and an oil reservoir sponge slidably connected inside the hollow shell. The slider and the oil reservoir sponge are in contact with each other. A sliding pin is fixedly connected to the bottom of the slider. The sliding pin passes through the hollow shell and is slidably connected to the hollow shell. The arc end of the sliding pin abuts against the inner surface of the fixture. A protrusion is fixedly connected to the bottom inner side of the fixture. The position of the protrusion corresponds to the position of the arc end of the sliding pin. A spring is sleeved on the outer side of the pin body of the sliding pin.

5. The rocker shaft and rocker bearing hot set tooling of claim 4, wherein: One end of the spring is fixedly connected to the slider, and the other end of the spring is fixedly connected to the inner surface of the hollow shell.

6. The rocker shaft and rocker bearing hot set tooling of claim 4, wherein: A sealing ring is embedded in the side of the slider, and the sealing ring is in contact with the inner wall of the hollow shell.

7. The rocker shaft and rocker bearing hot set tooling of claim 4, wherein: The hollow shell and the bushing are both provided with oil outlet holes on their side walls, and the oil outlet holes are interconnected. The position of the oil outlet hole corresponds to the position of the oil storage sponge.

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