Braking rocker arm and engine

Abstract

The invention discloses a brake rocker arm and an engine, belonging to the field of engine devices, comprising a rocker arm body, a bearing is installed inside one side of the rocker arm body, a connecting shaft is slidably connected inside the bearing, a roller is slidably sleeved outside the connecting shaft, an end cover is connected inside the rocker arm body through a thread, and a cross groove is arranged on the outer surface of the end cover. The brake rocker arm and the engine can be inserted into the cross groove by rotating a tool, and the end cover can be removed by rotating, so that the connecting shaft can be pulled out conveniently for disassembly, assembly and replacement of the roller. The design of the end cover can prevent dust and impurities from entering the inside of the bearing, thereby increasing the wear of the connecting shaft and reducing its service life. By pulling the positioning pin upwards and moving the left fixing ring and the right fixing ring to both sides respectively to remove them, the telescopic rod can be pulled out conveniently for maintenance and replacement of the internal parts of the sleeve. The design of the fixing block, the clamping block and the positioning pin facilitates the quick connection and installation of the left fixing ring and the right fixing ring, thereby improving the maintenance efficiency.

Description

Technical Field

[0001] The present invention relates to the field of engine devices, and more particularly to a brake rocker arm and an engine. Background Art

[0002] The brake rocker arm is raised or lowered at one end by the rotating lobe of the camshaft, while the other end acts on the valve stem. When the lobe of the camshaft raises the outer arm, the force generated inside presses on the valve stem, thereby opening the service valve. When the outer arm is allowed to return due to the action of the camshaft, the inner arm rises, allowing the valve spring to compress and close the service valve.

[0003] The existing brake rocker arm and engine have a connecting shaft fixedly installed inside the rocker arm body, which is inconvenient to remove and replace the roller. The roller and the cam are easily worn when in contact with each other, which affects the accuracy of the rocker arm over time. At the same time, when removing other parts such as the spring and piston inside the rocker arm, it is necessary to remove the fixing devices such as nuts first, which affects the maintenance efficiency of the rocker arm. Therefore, it is necessary to improve the existing technology. Summary of the invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a brake rocker arm and an engine, which can be inserted into the cross slot by rotating it with a tool, and the end cover can be removed by rotating it, so that the connecting shaft can be pulled out conveniently for disassembly, assembly and replacement of the roller. The design of the end cover can prevent dust and impurities from entering the inside of the bearing, thereby causing increased wear of the connecting shaft and reducing its service life. By pulling the locating pin upwards and moving the left fixing ring and the right fixing ring to both sides to remove them, the telescopic rod can be pulled out conveniently for maintenance and replacement of the internal parts of the sleeve. The design of the fixing block, the clamping block and the locating pin facilitates the quick connection and installation of the left fixing ring and the right fixing ring, thereby improving maintenance efficiency.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A brake rocker arm and an engine, comprising a rocker arm body, a bearing is installed inside one side of the rocker arm body, a connecting shaft is slidably connected inside the bearing, a roller is slidably sleeved on the outside of the connecting shaft, an end cover is threadedly connected inside the rocker arm body, a cross groove is provided on the outer surface of the end cover, a sleeve is fixedly welded on one side of the rocker arm body, a clamping ring is fixedly welded on the lower end of the sleeve, a left fixing ring is fastened and clamped on the outer side of the clamping ring, a fixing block is fixedly welded on one side of the left fixing ring, a spring is fixedly connected to the upper end of the fixing block, a positioning pin is slidably sleeved inside the spring, and the positioning pin is inserted through the A fixing block and a clamping block are inserted, and the outer side of the clamping ring is fastened and clamped with a right fixing ring. The brake rocker arm and the engine are inserted into the cross slot by using a tool to rotate and remove the end cover, so that the connecting shaft is conveniently pulled out for disassembly and replacement of the roller. The design of the end cover can prevent dust and impurities from entering the inside of the bearing, thereby causing increased wear of the connecting shaft and reducing its service life; by pulling the locating pin upwards and moving the left fixing ring and the right fixing ring to both sides respectively, it is convenient to pull out the telescopic rod to maintain and replace the internal parts of the sleeve. The design of the fixing block, the clamping block and the locating pin facilitates the quick connection and installation of the left fixing ring and the right fixing ring, thereby improving maintenance efficiency.

[0007] Furthermore, the outer surface of the connecting shaft is coated with lubricating oil, and the connecting shaft can be conveniently pulled out to disassemble and replace the roller by using a tool to rotate and insert it into the cross slot and rotate to remove the end cover.

[0008] Furthermore, the edge of the end cover is provided with threads, and the design of the end cover can prevent dust and impurities from entering the interior of the bearing, thereby causing increased wear of the connecting shaft and reducing its service life.

[0009] Furthermore, one side of the left fixing ring is in close contact with the right fixing ring.

[0010] Furthermore, the inner sliding sleeve of the clamping ring is connected with a telescopic rod. By pulling the positioning pin upwards and moving the left fixing ring and the right fixing ring to both sides respectively, the telescopic rod can be easily pulled out to perform maintenance and replacement of the internal parts of the sleeve.

[0011] Furthermore, a welding block is fixed on one side of the right fixing ring.

[0012] Furthermore, the left and right fixing rings are internally slidably sleeved with telescopic rods, and the design of the fixing block, the clamping block and the positioning pin facilitates the quick connection and installation of the left and right fixing rings, thereby improving maintenance efficiency.

[0013] Furthermore, a telescopic rod is slidably sleeved inside the sleeve.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] (1) This solution uses a tool to rotate and insert into the cross slot, and then rotates to remove the end cover, so that the connecting shaft can be pulled out for disassembly and replacement of the roller. The design of the end cover can prevent dust and impurities from entering the bearing, thereby increasing the wear of the connecting shaft and reducing its service life. By pulling the positioning pin upward and moving the left and right fixing rings to both sides to remove them, the telescopic rod can be pulled out to maintain and replace the internal parts of the sleeve. The design of the fixing block, the clamping block and the positioning pin facilitates the quick connection and installation of the left and right fixing rings, thereby improving maintenance efficiency.

[0016] (2) The outer surface of the connecting shaft is coated with lubricating oil. By using a tool to rotate and insert it into the cross slot, and then rotating and removing the end cover, it is convenient to pull out the connecting shaft and disassemble and replace the roller.

[0017] (3) The edge of the end cover is provided with threads. The design of the end cover can prevent dust and impurities from entering the interior of the bearing, thereby increasing the wear of the connecting shaft and reducing its service life.

[0018] (4) One side of the left fixing ring is close to the right fixing ring. The inner sliding sleeve of the clamping ring is connected with a telescopic rod. By pulling the positioning pin upward and moving it to both sides, the left fixing ring and the right fixing ring can be removed respectively. It is convenient to pull out the telescopic rod to maintain and replace the internal parts of the sleeve.

[0019] (5) A clamping block is fixedly welded on one side of the right fixing ring. The inner sliding sleeves of the left fixing ring and the right fixing ring are connected with telescopic rods. The design of the fixing block, the clamping block and the positioning pin facilitates the quick connection and installation of the left fixing ring and the right fixing ring, thereby improving maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is an enlarged cross-sectional view of the roller of the present invention from top view;

[0022] Figure 3 It is an enlarged view of point A of the present invention;

[0023] Figure 4 It is an enlarged cross-sectional view of the left fixing ring of the present invention.

[0024] Description of the numbers in the figure:

[0025] 1 rocker arm body, 11 bearing, 12 connecting shaft, 13 roller, 14 end cover, 15 cross groove, 2 sleeve, 21 snap ring, 22 left fixing ring, 23 fixing block, 24 spring, 25 positioning pin, 26 clamping block, 27 right fixing ring, 28 telescopic rod. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-4 A brake rocker arm and an engine, comprising a rocker arm body 1, a bearing 11 is installed inside one side of the rocker arm body 1, a connecting shaft 12 is slidably connected inside the bearing 11, a roller 13 is slidably sleeved on the outer side of the connecting shaft 12, an end cover 14 is threadedly connected inside the rocker arm body 1, a cross groove 15 is provided on the outer surface of the end cover 14, a sleeve 2 is fixedly welded on one side of the rocker arm body 1, a clamping ring 21 is fixedly welded on the lower end of the sleeve 2, a left fixing ring 22 is fastened and clamped on the outer side of the clamping ring 21, a fixing block 23 is fixedly welded on one side of the left fixing ring 22, a spring 24 is fixedly connected on the upper end of the fixing block 23, a positioning pin 25 is slidably sleeved inside the spring 24, a pin cap of the positioning pin 25 is fixedly connected to the upper end of the spring 24, a fixing block 23 and a clamping block 26 are inserted into the positioning pin 25, a right fixing ring 27 is fastened and clamped on the outer side of the clamping ring 21, and a telescopic rod 28 is slidably sleeved inside the sleeve 2.

[0028] See also Figure 1-2 The outer surface of the connecting shaft 12 is coated with lubricating oil. By using a tool to rotate and insert it into the cross slot 15, and rotating to remove the end cover 14, the connecting shaft 12 can be easily pulled out to disassemble and replace the roller 13. The edge of the end cover 14 is provided with a thread. The design of the end cover 14 can prevent dust and impurities from entering the interior of the bearing 11, thereby increasing the wear of the connecting shaft 12 and reducing its service life.

[0029] See also Figure 1 , Figure 3 and Figure 4 One side of the left fixing ring 22 is close to the right fixing ring 27, and the inner sliding sleeve of the clamping ring 21 is connected with a telescopic rod 28. By pulling the positioning pin 25 upward and moving to both sides to remove the left fixing ring 22 and the right fixing ring 27, it is convenient to pull out the telescopic rod 28 to maintain and replace the internal parts of the sleeve 2. One side of the right fixing ring 27 is fixedly welded with a clamping block 26, and the inner sliding sleeve of the left fixing ring 22 and the right fixing ring 27 is connected with a telescopic rod 28. The design of the fixing block 23, the clamping block 26 and the positioning pin 25 facilitates the quick connection and installation of the left fixing ring 22 and the right fixing ring 27, thereby improving the maintenance efficiency.

[0030] The brake rocker arm and engine are inserted into the cross slot 15 by rotating with a tool, and the end cover 14 is removed by rotating, so that the connecting shaft 12 is conveniently pulled out for disassembly and replacement of the roller 13. The design of the end cover 14 can prevent dust and impurities from entering the inside of the bearing 11, thereby causing increased wear of the connecting shaft 12 and reducing its service life. By pulling the positioning pin 25 upward and moving the left fixing ring 22 and the right fixing ring 27 to both sides to remove them, it is convenient to pull out the telescopic rod 28 to maintain and replace the internal parts of the sleeve 2. The design of the fixing block 23, the clamping block 26 and the positioning pin 25 facilitates the quick connection and installation of the left fixing ring 22 and the right fixing ring 27, thereby improving the maintenance efficiency.

[0031] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A brake rocker arm, comprising a rocker arm body (1), characterized in that: A bearing (11) is installed inside one side of the rocker arm body (1), a connecting shaft (12) is slidably connected inside the bearing (11), a roller (13) is slidably sleeved on the outside of the connecting shaft (12), an end cover (14) is threadedly connected inside the rocker arm body (1), a cross groove (15) is provided on the outer surface of the end cover (14), a sleeve (2) is fixedly welded to one side of the rocker arm body (1), a retaining ring (21) is fixedly welded to the lower end of the sleeve (2), and the outer side of the retaining ring (21) is fastened A left fixing ring (22) is clamped, a fixing block (23) is fixedly welded to one side of the left fixing ring (22), a spring (24) is fixedly connected to the upper end of the fixing block (23), a positioning pin (25) is slidably sleeved inside the spring (24), the fixing block (23) and the clamping block (26) are inserted into the positioning pin (25), a right fixing ring (27) is fastened and clamped to the outer side of the clamping ring (21), a thread is provided on the edge of the end cover (14), and a clamping block (26) is fixedly welded to one side of the right fixing ring (27).

2. A brake rocker arm according to claim 1, characterized in that: The outer surface of the connecting shaft (12) is coated with lubricating oil.

3. A brake rocker arm according to claim 1, characterized in that: One side of the left fixing ring (22) is in close contact with the right fixing ring (27).

4. A brake rocker arm according to claim 1, characterized in that: A telescopic rod (28) is slidably sleeved inside the clamping ring (21).

5. The brake rocker arm according to claim 1, characterized in that: A telescopic rod (28) is slidably sleeved inside the left fixing ring (22) and the right fixing ring (27).

6. A brake rocker arm according to claim 1, characterized in that: A telescopic rod (28) is slidably sleeved inside the sleeve (2).

7. An engine, characterized in that: The invention comprises the brake rocker arm as claimed in any one of claims 1 to 6.

Images