Oil cylinder shaft rod lubricating sleeve structure

Abstract

The utility model discloses an oil cylinder shaft rod lubricating sleeve structure, and relates to the field of automobiles. The oil cylinder shaft rod lubricating sleeve structure comprises an outer sleeve, an oil inlet channel is arranged between the outer sleeve and an inner sleeve, a first shaft sealing sleeve and a second shaft sealing sleeve are connected into the outer sleeve in a sleeved mode and located at the ends of the inner sleeve respectively, and a locking lantern ring is connected to one end of an inner cavity of the outer sleeve in a sleeved mode. The locking lantern ring is located on the side, away from the inner sleeve, of the second shaft sealing sleeve, the locking assembly is clamped to the end of the outer sleeve, and the locking assembly is used for clamping and locking the locking lantern ring. According to the oil cylinder shaft rod lubricating sleeve structure, through the cooperative use mode of the outer sleeve, the inner sleeve, the first shaft sealing sleeve, the locking assembly, the second shaft sealing sleeve and the locking lantern ring, the fixing shell locks the locking lantern ring through the fixing block, the locking lantern ring locks the inner sleeve, the first shaft sealing sleeve and the second shaft sealing sleeve, the locking lantern ring is detached, and the oil cylinder shaft rod lubricating sleeve structure is convenient to use. And the device can be disassembled and maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, and specifically relates to a lubricating sleeve structure for an oil cylinder shaft rod. Background Art

[0002] During the working process of a reciprocating internal combustion engine, the valves can be periodically opened and closed through a valve drive mechanism, so that the engine can effectively inhale fresh air or combustible mixture and exhaust the waste gas burned in the cylinder. After the traditional valve drive mechanism is designed, the valve motion law is solidified, and the valve lift and the duration of valve opening cannot be adjusted according to the actual operating conditions of the engine.

[0003] When the oil cylinder of an automobile drives the valve to work, the shaft rod drives the eccentric shaft to rotate, so that the eccentric shaft rotates to drive the valve to open and close. When the shaft rod is installed, the sleeve is used to rotatably install the shaft rod, and an oil inlet hole is opened on the sleeve, and the external lubricating oil enters between the sleeve and the shaft rod through the oil inlet hole.

[0004] In order to reduce the loss of softening oil between the sleeve and the shaft rod, a shaft seal sleeve is installed at both ends of the inner cavity of the sleeve. In order to ensure the stability of the installation of the shaft seal sleeve, an annular groove is usually opened inside the sleeve to install the shaft seal sleeve. However, when the recessed method is used to install the shaft seal sleeve, after the shaft seal sleeve is worn, when the shaft seal sleeve is disassembled, tools are needed to pry the shaft seal sleeve out of the annular groove, but this will cause scratches on the inside of the sleeve, so there are certain defects. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a lubricating sleeve structure for an oil cylinder shaft rod, which solves the problem that in order to reduce the loss of softening oil between the sleeve and the shaft rod, a shaft seal sleeve is installed at both ends of the inner cavity of the sleeve. In order to ensure the stability of the installation of the shaft seal sleeve, an annular groove is usually opened inside the sleeve to install the shaft seal sleeve. However, when the recessed method is used to install the shaft seal sleeve, after the shaft seal sleeve is worn, when the shaft seal sleeve is disassembled, tools are needed to pry the shaft seal sleeve out of the annular groove, but this will cause scratches on the inside of the sleeve.

[0006] To achieve the above purposes, the utility model is realized through the following technical solutions: A lubricating sleeve structure for an oil cylinder shaft rod, comprising:

[0007] An outer sleeve and an inner sleeve, the inner sleeve is sleeved inside the outer sleeve, and an oil inlet channel is arranged between the outer sleeve and the inner sleeve;

[0008] A first shaft seal sleeve and a second shaft seal sleeve, the first shaft seal sleeve and the second shaft seal sleeve are sleeved inside the outer sleeve, and the first shaft seal sleeve and the second shaft seal sleeve are respectively located at the ends of the inner sleeve;

[0009] A locking collar, which is sleeved on one end of the inner cavity of the outer sleeve and is located on a side of the second shaft sealing sleeve away from the inner sleeve;

[0010] A locking assembly is clamped on the end of the outer sleeve and is used to clamp and lock the locking collar.

[0011] Preferably, the oil inlet channel includes a first annular groove opened on the outside of the outer sleeve and a second annular groove opened on the outside of the inner sleeve, the inner wall of the first annular groove is provided with a first oil inlet hole, and the interior of the second annular groove is provided with a second oil inlet hole.

[0012] Preferably, the locking assembly comprises:

[0013] A fixed shell, wherein the end of the outer sleeve is provided with a bearing groove matching the fixed shell;

[0014] A fixed block, the fixed block is fixedly connected to the outside of the locking collar, and the outer wall of the fixed block is slidably engaged with the fixed housing;

[0015] A locking plate is clamped between the fixed shell and the outer sleeve.

[0016] Preferably, the outer wall of the fixed shell is provided with a groove matching the fixed block, the outer wall of the locking plate is slidably inserted and sleeved with the fixed shell, a locking groove is provided on one side of the inner wall of the bearing groove, and one end of the outer wall of the locking plate is slidably engaged with the inner cavity of the locking groove.

[0017] Preferably, the locking assembly further comprises:

[0018] A connecting plate, the connecting plate is slidably disposed inside the fixed housing, and one end of the locking plate is fixedly connected to the connecting plate;

[0019] A locking rod, one end of which is fixedly connected to the connecting plate, and an outer wall of the locking rod is slidably inserted and sleeved with the fixing block.

[0020] Preferably, a button is slidably inserted into the side of the fixed shell, one end of the button is fixedly connected to the connecting plate, the inner wall of the bearing groove is provided with a notch matching the button, and the side of the button is provided with an inclined slope.

[0021] Preferably, the locking assembly further comprises:

[0022] A fixing rod, the fixing rod is fixedly connected to the interior of the fixing housing in a horizontal state, and the outer wall of the fixing rod is slidably inserted and sleeved with the connecting plate;

[0023] A limiting spring, the limiting spring is slidably sleeved outside the fixed rod, and the end of the limiting spring is in pressing fit with the connecting plate.

[0024] Preferably, a docking rod is arranged between the locking collar and the inner sleeve. The outer wall of the docking rod is slidably inserted and sleeved with the second shaft seal sleeve. Docking grooves matching the docking rod are formed on both opposite sides of the locking collar and the inner sleeve.

[0025] The utility model discloses a lubricating sleeve structure for an oil cylinder shaft rod, and the beneficial effects thereof are as follows:

[0026] In the lubricating sleeve structure for the oil cylinder shaft rod, through the combined use of an outer sleeve, an inner sleeve, a first shaft seal sleeve, a locking assembly, a second shaft seal sleeve and a locking collar, the locking assembly includes a fixed housing, a fixed block, a connecting plate and a locking plate. The fixed housing can be clamped inside the outer sleeve through the locking plate, so that the fixed housing locks the locking collar through the fixed block, and the locking collar locks the inner sleeve, the first shaft seal sleeve and the second shaft seal sleeve. By disassembling the locking collar, it can be disassembled and maintained. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 is a schematic diagram of the internal structure of the front surface of the present invention;

[0030] Figure 3 is the present invention Figure 2 is an enlarged schematic diagram of part A in the present invention;

[0031] Figure 4 is a schematic diagram of the overall structure of the fixed housing of the present invention;

[0032] Figure 5 is a schematic diagram of the internal structure of the side surface of the fixed housing of the present invention.

[0033] In the figure: 1. Outer sleeve; 2. Inner sleeve; 21. First annular groove; 22. First oil inlet hole; 23. Second annular groove; 24. Second oil inlet hole; 3. First shaft seal sleeve; 4. Locking assembly; 41. Fixed housing; 42. Fixed block; 43. Connecting plate; 44. Locking plate; 45. Slotted opening; 46. Locking rod; 47. Button; 48. Fixed rod; 49. Limiting spring; 5. Second shaft seal sleeve; 6. Locking collar; 7. Docking rod. Detailed implementation manners

[0034] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be described clearly and completely. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0035] By providing a lubricating sleeve structure for an oil cylinder shaft rod in the embodiments of this application, the problem is solved that in order to reduce the loss of softening oil between the sleeve and the shaft rod, a shaft seal sleeve is installed at both ends of the inner cavity of the sleeve. To ensure the installation stability of the shaft seal sleeve, an annular groove is usually opened inside the sleeve to install the shaft seal sleeve. However, when using the recessed method to install the shaft seal sleeve, after the shaft seal sleeve is worn, when disassembling the shaft seal sleeve, it is necessary to use tools to pry out the shaft seal sleeve from the annular groove, but this will cause scratches inside the sleeve. By releasing the limitation of the locking assembly 4 on the locking collar 6, the locking collar 6, the second shaft seal sleeve 5, the inner sleeve 2 and the first shaft seal sleeve 3 can be taken out from the inner part of the outer sleeve 1 in sequence, avoiding scratches on the inner part of the outer sleeve 1 when disassembling the second shaft seal sleeve 5, the inner sleeve 2 and the first shaft seal sleeve 3.

[0036] To better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the accompanying drawings of the specification and specific implementation manners.

[0037] The embodiments of the present utility model disclose a lubricating sleeve structure for an oil cylinder shaft rod.

[0038] According to the appendix Figure 1As shown in FIGS. 0-5, it includes an outer sleeve 1, an inner sleeve 2, a first shaft seal sleeve 3, a locking assembly 4, a second shaft seal sleeve 5 and a locking collar 6. The inner sleeve 2 is sleeved inside the outer sleeve 1. An oil inlet passage is provided between the outer sleeve 1 and the inner sleeve 2. The oil inlet passage includes a first annular groove 21 opened on the outside of the outer sleeve 1 and a second annular groove 23 opened on the outside of the inner sleeve 2. A first oil inlet hole 22 is opened on the inner wall of the first annular groove 21, and a second oil inlet hole 24 is opened inside the second annular groove 23. Thus, when the outer sleeve 1 is installed, the external softening oil can enter the inside of the second annular groove 23 through the first annular groove 21 and the first oil inlet hole 22, and then enter the inside of the inner sleeve 2 through the second oil inlet hole 24, so as to lubricate the shaft rod installed inside the inner sleeve 2. The first shaft seal sleeve 3 and the second shaft seal sleeve 5 are sleeved inside the outer sleeve 1. The first shaft seal sleeve 3 and the second shaft seal sleeve 5 are respectively located at the ends of the inner sleeve 2. The locking collar 6 is sleeved at one end of the inner cavity of the outer sleeve 1. The locking collar 6 is located on the side of the second shaft seal sleeve 5 away from the inner sleeve 2. The first shaft seal sleeve 3 and the second shaft seal sleeve 5 can perform shaft sealing on the inner sleeve 2 and the shaft rod installed inside it, thereby reducing the loss of lubricating oil between them. The locking assembly 4 is snap-connected to the end of the outer sleeve 1, and the locking assembly 4 is used to snap-lock the locking collar 6.

[0039] In particular, the locking assembly 4 includes a fixed housing 41, a fixed block 42 and a locking plate 44. A bearing groove matching the fixed housing 41 is opened at the end of the outer sleeve 1, and one side of the fixed housing 41 is in the same plane as the end face of the outer sleeve 1. The fixed block 42 is fixedly connected to the outside of the locking collar 6, and the outer wall of the fixed block 42 is slidably snap-connected to the fixed housing 41. The locking plate 44 is snap-connected between the fixed housing 41 and the outer sleeve 1. A slot 45 matching the fixed block 42 is opened on the outer wall of the fixed housing 41. The outer wall of the locking plate 44 is slidably inserted and sleeved with the fixed housing 41. A locking groove is opened on one side of the inner wall of the bearing groove. One end of the outer wall of the locking plate 44 is slidably snap-connected to the inner cavity of the locking groove. When the locking plate 44 is snap-connected and locked with the outer sleeve 1, the fixed housing 41 can be snap-connected and limited, so that the fixed housing 41 is in a stable state to snap-connect and limit the fixed block 42, thereby ensuring the stability of the installation of the locking collar 6.

[0040] Furthermore, the locking assembly 4 further includes a connecting plate 43 and a locking rod 46. The connecting plate 43 is slidably arranged inside the fixed housing 41. One end of the locking plate 44 is fixedly connected to the connecting plate 43. One end of the locking rod 46 is fixedly connected to the connecting plate 43. The outer wall of the locking rod 46 is slidably inserted and sleeved with the fixed block 42. The locking rod 46 can snap-lock the fixed block 42 again, thereby ensuring the stability of the snap-connection between the fixed block 42 and the fixed housing 41.

[0041] Further, a button 47 is slidably inserted and sleeved on the side of the fixed housing 41. One end of the button 47 is fixedly connected to the connecting plate 43. A notch matching the button 47 is formed in the inner wall of the bearing groove. An inclined slope is formed on the side of the button 47. Thus, by squeezing the inclined slope of the button 47 from the notch and squeezing the button 47 into the fixed housing 41, the connecting plate 43 can be driven to move the locking plate 44 and the locking rod 46, so that the locking plate 44 and the locking rod 46 are in an unlocked state. The locking assembly 4 further includes a fixed rod 48 and a limiting spring 49. The fixed rod 48 is horizontally fixedly connected to the inside of the fixed housing 41. The outer wall of the fixed rod 48 is slidably inserted and sleeved with the connecting plate 43. The limiting spring 49 is slidably sleeved on the outside of the fixed rod 48. The end of the limiting spring 49 is in pressing fit with the connecting plate 43. The limiting spring 49 can give a repulsive force to the two connecting plates 43, so that the connecting plate 43 drives the locking plate 44 and the locking rod 46 to be in a stable clamping state.

[0042] Furthermore, a docking rod 7 is provided between the locking collar 6 and the inner sleeve 2. The outer wall of the docking rod 7 is slidably inserted and sleeved with the second shaft seal sleeve 5. Docking grooves matching the docking rod 7 are formed on the opposite sides of the locking collar 6 and the inner sleeve 2. The locking collar 6 can further perform clamping and limiting on the inner sleeve 2 through the docking rod 7 to prevent the inner sleeve 2 from rotating inside the outer sleeve 1.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A cylinder shaft lubrication sleeve structure, characterized in that: include: An outer sleeve (1) and an inner sleeve (2), wherein the inner sleeve (2) is sleeved inside the outer sleeve (1), and an oil inlet passage is provided between the outer sleeve (1) and the inner sleeve (2); A first shaft sealing sleeve (3) and a second shaft sealing sleeve (5), wherein the first shaft sealing sleeve (3) and the second shaft sealing sleeve (5) are sleeved inside the outer sleeve (1), and the first shaft sealing sleeve (3) and the second shaft sealing sleeve (5) are respectively located at the ends of the inner sleeve (2); A locking collar (6), the locking collar (6) being sleeved on one end of the inner cavity of the outer sleeve (1), the locking collar (6) being located on a side of the second shaft sealing sleeve (5) facing away from the inner sleeve (2); A locking assembly (4) is clamped to the end of the outer sleeve (1), and the locking assembly (4) is used to clamp and lock the locking collar (6).

2. The cylinder shaft lubrication sleeve structure according to claim 1, characterized in that: The oil inlet passage comprises a first annular groove (21) formed on the outside of the outer sleeve (1) and a second annular groove (23) formed on the outside of the inner sleeve (2); a first oil inlet hole (22) is formed on the inner wall of the first annular groove (21), and a second oil inlet hole (24) is formed inside the second annular groove (23).

3. The cylinder shaft lubrication sleeve structure according to claim 1, characterized in that: The locking assembly (4) comprises: A fixed shell (41), wherein the end of the outer sleeve (1) is provided with a bearing groove matching the fixed shell (41); A fixed block (42), the fixed block (42) is fixedly connected to the outside of the locking collar (6), and the outer wall of the fixed block (42) is slidably engaged with the fixed housing (41); A locking plate (44) is clamped between the fixed shell (41) and the outer sleeve (1).

4. The cylinder shaft lubrication sleeve structure according to claim 3, characterized in that: The outer wall of the fixed shell (41) is provided with a slot (45) matching the fixed block (42); the outer wall of the locking plate (44) is slidably inserted and sleeved with the fixed shell (41); a locking slot is provided on one side of the inner wall of the bearing slot; one end of the outer wall of the locking plate (44) is slidably engaged with the inner cavity of the locking slot.

5. The cylinder shaft lubrication sleeve structure according to claim 4, characterized in that: The locking assembly (4) further comprises: A connecting plate (43), wherein the connecting plate (43) is slidably disposed inside the fixed housing (41), and one end of the locking plate (44) is fixedly connected to the connecting plate (43); A locking rod (46), one end of which is fixedly connected to the connecting plate (43), and an outer wall of the locking rod (46) is slidably inserted and sleeved with the fixing block (42).

6. The cylinder shaft lubrication sleeve structure according to claim 5, characterized in that: A button (47) is slidably inserted and sleeved on the side of the fixed shell (41), one end of the button (47) is fixedly connected to the connecting plate (43), the inner wall of the bearing groove is provided with a notch matching the button (47), and the side of the button (47) is provided with an inclined slope.

7. The cylinder shaft lubrication sleeve structure according to claim 6, characterized in that: The locking assembly (4) further comprises: A fixing rod (48), the fixing rod (48) being fixedly connected to the interior of the fixing housing (41) in a horizontal state, and the outer wall of the fixing rod (48) being slidably interlaced and sleeved with the connecting plate (43); A limit spring (49) is slidably sleeved on the outside of the fixing rod (48), and an end of the limit spring (49) is pressed and fitted with the connecting plate (43).

8. The cylinder shaft lubrication sleeve structure according to claim 1, characterized in that: A docking rod (7) is provided between the locking collar (6) and the inner sleeve (2); the outer wall of the docking rod (7) is slidably inserted and sleeved with the second shaft sealing sleeve (5); and a docking groove matching the docking rod (7) is provided on the opposite side of the locking collar (6) and the inner sleeve (2).

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