WO2021135328A1 - 自润滑轴和作业机械 - Google Patents

自润滑轴和作业机械 Download PDF

Info

Publication number
WO2021135328A1
WO2021135328A1 PCT/CN2020/112210 CN2020112210W WO2021135328A1 WO 2021135328 A1 WO2021135328 A1 WO 2021135328A1 CN 2020112210 W CN2020112210 W CN 2020112210W WO 2021135328 A1 WO2021135328 A1 WO 2021135328A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
shaft body
elastic member
shaft
self
Prior art date
Application number
PCT/CN2020/112210
Other languages
English (en)
French (fr)
Inventor
谷云辉
丁泽华
毛成
Original Assignee
三一汽车制造有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三一汽车制造有限公司 filed Critical 三一汽车制造有限公司
Publication of WO2021135328A1 publication Critical patent/WO2021135328A1/zh

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C3/00—Shafts; Axles; Cranks; Eccentrics
    • F16C3/02—Shafts; Axles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N29/00—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
    • F16N7/14—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated the lubricant being conveyed from the reservoir by mechanical means

Definitions

  • This application relates to the field of construction machinery, and specifically to a self-lubricating shaft and work machinery.
  • the purpose of this application includes providing a self-lubricating shaft with better lubricating effect.
  • the object of the present application also includes providing a working machine equipped with the above-mentioned self-lubricating shaft.
  • an embodiment of the present application provides a self-lubricating shaft, including a shaft body with an inner cavity and a piston movably arranged in the inner cavity of the shaft body, and the inner cavity of the shaft body is along the axial direction of the shaft body.
  • one side of the piston is an oil storage cavity, the oil storage cavity is used to store lubricant, an oil outlet channel is provided on the shaft body, one end of the oil outlet channel communicates with the oil storage cavity, and the other One end extends to the outer peripheral surface of the shaft body;
  • the piston is connected to the shaft body through an elastic member, and the elastic member is used to apply a force to the piston to compress the oil storage cavity.
  • an oil injection port is provided on the end surface of the shaft body, and the oil injection port is connected to the oil storage cavity through an oil injection channel; the oil injection channel is embedded on the outer peripheral surface of the shaft body And the inner circumference.
  • an oil cup is provided at the oil injection port.
  • the side of the piston facing away from the oil storage cavity and a part of the inner wall of the shaft body form a non-oil storage cavity.
  • the elastic member is a compression spring capable of providing thrust, and the elastic member is located in the non-oil storage cavity, or the elastic member is a tension spring capable of providing tension, and the elastic member is located in the oil storage cavity.
  • the non-oil storage cavity communicates with the outside of the shaft body through an air hole.
  • two pistons are provided in the inner cavity of the shaft body, the oil storage cavity is formed between the two pistons, and the two elastic members are respectively connected to the two pistons.
  • the two pistons are provided with a force for moving oppositely to the two pistons.
  • two pistons are arranged in the inner cavity of the shaft body, the elastic member is arranged between the two pistons, and two ends of the elastic member are respectively connected to Two of the pistons, and provide the two pistons with opposing forces.
  • the shaft body has two inner cavities, the two inner cavities are spaced apart in the axial direction of the shaft body and separated by a baffle, and the two inner cavities are separated by a baffle.
  • a piston is provided in the cavity to separate the inner cavity into the oil storage cavity and the non-oil storage cavity; the two pistons and the baffle are respectively connected with one elastic
  • Each of the two oil storage cavities communicates with the inside and the outside through an oil outlet passage.
  • the piston includes a first piston and a second piston
  • the elastic member includes a first elastic member and a second elastic member
  • the inner cavity of the shaft body is provided with a first baffle And a second baffle
  • the first piston is connected to the first baffle through the first elastic member
  • the second piston is connected to the second baffle through a second elastic member
  • the first The elastic member and the second elastic member respectively provide forces away from each other to the first piston and the second piston
  • the first baffle is located between the second baffle and the second piston
  • the first elastic part passes through the through hole on the second baffle
  • the second baffle is located between the first baffle and the first piston
  • the second elastic part passes through the The through hole on the first baffle.
  • At least one end of the shaft body is provided with a transparent part for observing the inside of the shaft body.
  • the end of the shaft body is provided with an end cover for sealing one end of the inner cavity, the end cover is provided with a screw hole, the transparent part is an acrylic pin, and the acrylic pin is threadedly connected to the screw hole.
  • the present application provides a working machine, including the self-lubricating shaft provided in the above-mentioned first aspect.
  • the self-lubricating shaft provided by the embodiment of the present application includes a shaft body with an inner cavity and a piston movably arranged in the inner cavity of the shaft body.
  • the inner cavity of the shaft body extends along the axial direction of the shaft body, and one side of the piston is an oil storage cavity.
  • the oil cavity is used to store lubricant.
  • An oil outlet channel is provided on the shaft body. One end of the oil outlet channel is connected to the oil storage cavity, and the other end extends to the outer circumference of the shaft body; the piston is connected to the shaft body through an elastic member, which is used to The piston exerts force to compress the oil reservoir.
  • the self-lubricating shaft can continuously and spontaneously squeeze the lubricant stored in the oil storage cavity of the shaft body to the outer surface of the shaft body to achieve a lubricating effect, avoiding frequent manual replenishment of lubricant, and in the elastic part Under active extrusion, the lubricant on the outer surface of the shaft is filled with good lubrication effect.
  • Figure 1 is an exploded view of the self-lubricating shaft provided by the first embodiment of the application
  • FIG. 3 is a schematic diagram of the oil injection channel of the self-lubricating shaft provided by the first embodiment of the application;
  • Figure 5 is a cross-sectional view of a self-lubricating shaft provided by a third embodiment of the application.
  • Figure 6 is a cross-sectional view of a self-lubricating shaft provided by a fourth embodiment of the application.
  • Figure 7 is a cross-sectional view of a self-lubricating shaft provided by a fifth embodiment of the application.
  • Fig. 8 is a cross-sectional view of a self-lubricating shaft provided by a sixth embodiment of the application.
  • Icon 010-self-lubricating shaft; 100-shaft body; 101-oil outlet channel; 102-oil filling port; 103-oil cup; 104-oil filling channel; 105-oil storage cavity; 106-non-oil storage cavity; 107-air hole 110-first end cover; 112-transparent part; 120-second end cover; 130-baffle plate; 132-first baffle plate; 134-second baffle plate; 200-piston; 201-first piston; 202 -The second piston; 210-the elastic element; 211-the first elastic element; 212-the second elastic element; 220-the sealing ring.
  • Figure 1 is an exploded view of the self-lubricating shaft 010 provided by the first embodiment of this application;
  • Figure 2 is a cross-sectional view of the self-lubricating shaft 010 provided by the first embodiment of this application;
  • Figure 3 is provided by the first embodiment of this application Schematic diagram of the oil injection channel 104 of the self-lubricating shaft 010.
  • this embodiment provides a self-lubricating shaft 010, including a shaft body 100 with an inner cavity and a piston 200 movably arranged in the inner cavity of the shaft body 100, the inner cavity of the shaft body 100 is along the axis
  • the shaft 100 extends in the axial direction.
  • the inner cavity of the shaft 100 is separated by the piston 200 into an oil storage chamber 105 and a non-oil storage chamber 106.
  • the oil storage chamber 105 is used to store lubricant.
  • the shaft 100 is provided with an oil outlet channel 101, One end of the oil outlet channel 101 communicates with the oil storage cavity 105, and the other end extends to the outer peripheral surface of the shaft body 100; the piston 200 is connected to the shaft body 100 through an elastic member 210, and the piston 200 can be relative to the shaft body 100 under the force of the elastic member 210. Move in the axial direction to compress the oil storage cavity 105. It can be understood that under the action of the elastic member 210, the piston 200 can squeeze the lubricant (such as engine oil, etc.) in the oil storage cavity 105, so that the lubricant flows from the oil outlet channel 101 to the outer surface of the shaft body 100.
  • the lubricant such as engine oil, etc.
  • the lubrication The agent can play a lubricating effect between the outer surface of the shaft 100 and an external structure (such as a boom).
  • the lubricant in the self-lubricating shaft 010 can continuously supply lubricant to the outer peripheral surface under the action of the piston 200 and the elastic member 210, which prevents the operator from manually adding lubricant on the shaft surface.
  • the self-lubricating shaft 010 of the present application The elastic member 210 provides a certain pre-pressure, and the lubricant has the power to be extruded to the outer peripheral surface of the shaft body 100. Therefore, it can ensure that the outer surface of the self-lubricating shaft 010 is kept full of lubricant, so the lubrication effect is good.
  • both ends of the shaft body 100 are sealed by end caps, and the two end caps are the first end cap 110 and the second end cap 120 respectively.
  • the connection between the end cover and the shaft body 100 may be threaded connection, welding or connection through fasteners, and the sealing performance is ensured.
  • At least one end of the shaft body 100 is provided with a transparent portion 112 for observing the inside of the shaft body 100.
  • the first end cover 110 is provided with a screw hole
  • the transparent part 112 is an acrylic pin
  • the acrylic pin is threadedly connected to the screw hole. The operator can observe the condition of the inner cavity of the shaft body 100 through the acrylic pin, such as the position of the piston 200 and the remaining amount of lubricant.
  • the transparent portion 112 can also be replaced by other materials, such as a glass window.
  • an oil injection port 102 is provided on the end surface of the shaft body 100, and the oil injection port 102 is connected to the oil storage cavity 105 through an oil injection channel 104. Furthermore, an oil cup 103 is provided at the oil injection port 102. As shown in Figure 3, the oil injection channel 104 is embedded between the outer and inner peripheral surfaces of the shaft body 100, extends in the axial direction to a position corresponding to the oil storage cavity 105, and then extends radially inward to communicate with the oil storage cavity 105 . In this embodiment, the oil injection port 102 is located at the first end where the first end cover 110 is located. In other embodiments, the oil injection port 102 may also be located at the end where the second end cover 120 is located.
  • the elastic member 210 is a compression spring capable of providing thrust, and the elastic member 210 is located in the non-oil storage cavity 106.
  • One end of the elastic member 210 is connected to the piston 200, and the other end is connected to the second end cover 120.
  • the two ends of the elastic member 210 can be connected to corresponding components by welding.
  • a sealing ring 220 is provided on the outer ring of the piston 200.
  • the working principle of the self-lubricating shaft 010 provided in this embodiment is as follows:
  • 1Oil filling stage After assembling the shaft body 100 with an external structure (such as a boom), open the oil cup 103, and inject lubricant into the oil storage cavity 105 of the shaft body 100 through the oil filling port 102.
  • the pressure of the lubricant will push the piston 200 and
  • the sealing ring 220 moves to the right (based on the orientation of FIG. 2), so that the compression spring as the elastic member 210 is compressed, and the compression spring stores pressure.
  • the same amount of lubricant as the volume of the oil cavity when the spring is compressed is injected, the oil injection is stopped, and the oil cup 103 is installed and tightened.
  • the pre-tightening pressure of the elastic member 210 after oil injection causes the outlet of the oil outlet channel 101 on the shaft body 100 to continuously inject lubricant into the contact position between the shaft body 100 and the external assembly structure.
  • the solution has high reliability and is not easy to fail.
  • the injection volume is equal to the volume of the oil cavity when the spring is compressed, and the operation is convenient and reliable.
  • the self-lubricating shaft 010 avoids problems such as wear of the shaft body 100 caused by untimely lubrication by means of self-lubricating, and the service life is increased.
  • the lubricant is continuously injected to reduce the wear of the outside of the shaft body 100 and the assembly position of the external structure, and avoid the problem of abnormal noise.
  • FIG. 4 is a cross-sectional view of the self-lubricating shaft 010 provided by the second embodiment of the application.
  • the self-lubricating shaft 010 provided in this embodiment is similar to the embodiment shown in FIG. 2, but the difference is that the elastic member 210 is a tension spring capable of providing tension, and the elastic member 210 is located in the oil storage cavity 105.
  • the area between the second end cover 120 and the piston 200 is the oil storage cavity 105
  • the area between the first end cover 110 and the piston 200 is the non-oil storage cavity 106. Therefore, the oil injection channel 104 should be connected to the oil storage cavity 105 on the right side of the piston 200.
  • Fig. 5 is a cross-sectional view of a self-lubricating shaft 010 provided by a third embodiment of the application.
  • two pistons 200 are provided in the inner cavity of the shaft body 100, and an oil storage cavity 105 is formed between the two pistons 200.
  • the two elastic members 210 are respectively connected to the two pistons 200 and provide force for the two pistons 200 to move toward each other.
  • the oil outlet channel 101 is located between the two pistons 200.
  • the elastic member 210 is a compression spring, and the two elastic members 210 are located in the non-oil storage cavity 106 and abut against the end caps at both ends of the shaft body 100.
  • the oil injection channel 104 (not shown in the figure) should be connected to a position between the two pistons 200 so that lubricant can be injected into the oil storage cavity 105.
  • FIG. 6 is a cross-sectional view of the self-lubricating shaft 010 provided by the fourth embodiment of the application.
  • the shaft body 100 has two cavities.
  • the two cavities are spaced in the axial direction of the shaft body 100 and separated by a baffle 130.
  • the two cavities are respectively provided with A piston 200 and two pistons 200 separate the respective inner cavity into an oil storage cavity 105 and a non-oil storage cavity 106 respectively.
  • An elastic member 210 is respectively connected between the two pistons 200 and the baffle 130.
  • the elastic member 210 is a compression spring.
  • the area between the piston 200 and the baffle 130 is the non-oil storage chamber 106, and the piston 200
  • the area between the end cover and the end cover is the oil storage cavity 105.
  • the two oil storage chambers 105 are connected to the inside and the outside through an oil outlet passage 101 respectively.
  • the two non-oil storage cavities 106 communicate with the outside of the shaft body 100 through the air hole 107.
  • the air hole 107 can balance the air pressure outside the non-oil storage cavity 106 and the shaft body 100 to prevent the non-oil storage cavity 106 from generating negative pressure, which causes the piston 200 to be unable to continue to push the oil storage cavity 105.
  • the non-oil storage cavity 106 may be additionally provided with an air hole 107 to communicate with the outside of the shaft body 100.
  • oil injection channel 104 in this embodiment should be divided into two branches, corresponding to two outlets, which can introduce lubricant into the two oil storage cavities 105 respectively.
  • FIG. 7 is a cross-sectional view of the self-lubricating shaft 010 provided by the fifth embodiment of the application. Please refer to FIG. 7, which is similar to the self-lubricating shaft 010 of the embodiment in FIG. 5, except that an elastic member 210 is used.
  • the elastic member 210 is a tension spring and is connected between the two pistons 200. Therefore, between the baffle 130 and the piston 200 is an oil storage cavity 105, between the piston 200 and the end cover is a non-oil storage cavity 106, and the elastic member 210 is located in the oil storage cavity 105.
  • the effect achieved is similar to the self-lubricating shaft 010 of the embodiment in FIG. 5.
  • Fig. 8 is a cross-sectional view of a self-lubricating shaft provided by a sixth embodiment of the application.
  • the self-lubricating shaft 010 provided in this embodiment is similar to the self-lubricating shaft provided in the embodiment in FIG. 6,
  • the piston includes a first piston 201 and a second piston 202, and the elastic member includes a first elastic member 211 and a second elastic member. Pieces 212.
  • the inner cavity of the shaft 100 is provided with a first baffle 132 and a second baffle 134, the first piston 201 is connected to the first baffle 132 through a first elastic member 211, and the second piston 202 passes through a second
  • the elastic member 212 is connected to the second baffle 134.
  • both the first elastic member 211 and the second elastic member 212 are compression springs, which respectively provide the first piston 201 and the second piston 202 with a force away from each other.
  • the first baffle 132 is located between the second baffle 134 and the second piston 202, the first elastic member 211 passes through the through hole on the second baffle 134, and the second baffle 134 is located between the first baffle 132 and the first baffle 132.
  • the second elastic member 212 passes through the through hole on the first baffle 132.
  • the left side of the first piston 201 and the right side of the second piston 202 respectively form an oil storage cavity 105, and a non-oil storage cavity 106 is formed between the two.
  • the compression spring when the compression spring is compressed to the limit position, it has a minimum compression length, wherein the length of the part that cannot be further compressed cannot be used as the effective stroke interval of the spring. Therefore, compared with the two elastic members 210 of the self-lubricating shaft 010 in the embodiment of FIG.
  • the length of the incompressible portion of the first elastic member 211 and the second elastic member 212 is at least Part of it is coincident, which means that the non-effective stroke intervals of the two elastic members are at least partially overlapped. Therefore, the axial direction of the entire self-lubricating shaft 010 can be made upward, and the effective stroke interval occupies a larger proportion, and the storage rate of lubricant can be higher. .
  • the first baffle 132 and the second baffle 134 have through holes to allow air to circulate, only one air hole 107 is required.
  • the embodiment of the present application also provides a work machine (not shown in the figure).
  • the work machine includes at least two booms, and the booms are connected by the self-lubricating shaft 010 provided in the above-mentioned embodiment of the present application. Since the self-lubricating shaft 010 provided by the embodiment of the present application is installed, the joint of the arm frame of the work machine has a better lubricating effect.
  • the self-lubricating shaft provided by the embodiment of the present application includes a shaft body with an inner cavity and a piston movably arranged in the inner cavity of the shaft body.
  • the inner cavity of the shaft body extends along the axial direction of the shaft body, and one side of the piston is
  • the oil storage cavity is used to store lubricant.
  • An oil outlet channel is provided on the shaft body. One end of the oil outlet channel is connected to the oil storage cavity and the other end extends to the outer peripheral surface of the shaft body; the piston is connected with the shaft body through an elastic member, The elastic member is used to apply force to the piston to compress the oil storage chamber.
  • the self-lubricating shaft can continuously and spontaneously squeeze the lubricant stored in the oil storage cavity of the shaft body to the outer surface of the shaft body to achieve a lubricating effect, avoiding frequent manual replenishment of lubricant, and in the elastic part Under active extrusion, the lubricant on the outer surface of the shaft is filled with good lubrication effect.
  • the working machine provided by the embodiment of the present application is equipped with the above-mentioned self-lubricating shaft.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • General Details Of Gearings (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

公开了一种自润滑轴和安装有该自润滑轴的作业机械。该自润滑轴包括具有内腔的轴体（100）和活动设置于轴体内腔中的活塞（200），轴体（100）的内腔沿轴体（100）的轴向延伸，活塞（200）的一侧为储油腔（105），储油腔（105）用于储存润滑剂，轴体（100）上设置有出油通道（101），出油通道（101）的一端连通储油腔（105），另一端延伸至轴体（100）外周面；活塞（200）通过弹性件（210）与轴体（100）连接，弹性件（210）用于向活塞（200）施加作用力以压缩储油腔（105）。该自润滑轴能够连续地、自发地将轴体的储油腔内储存的润滑剂挤压至轴体外表面，以达到润滑效果，避免了人工频繁补充润滑剂，并且在弹性件的主动挤压下，轴体外表面的润滑剂充盈，润滑效果好。

Description

自润滑轴和作业机械
本申请要求于2019年12月31日提交中国国家知识产权局、申请号为“201911407882.2”、发明名称为“自润滑轴和作业机械”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及工程机械领域，具体而言，涉及一种自润滑轴和作业机械。
背景技术
混凝土泵车等作业机械在现代化工程工地施工中应用广泛，混凝土泵车的输送管装设于由多节臂组成的臂架上，并且能够随臂架一起回转、展开和收拢，每节臂架之间通过特制销轴连接。随着臂架回转次数的增加，销轴与臂架之间会发生磨损，严重会造成臂架运动不正常发生事故。因此一般在臂架销轴上开设有黄油嘴，使用者定期向黄油嘴注油可减轻臂架与销轴之间的磨损。但若使用者未及时注油，会造成润滑不及时导致臂架销轴磨损严重。因此，现有的销轴润滑效果不佳。
发明内容
本申请的目的包括，提供了一种自润滑轴，其具有较佳的润滑效果。本申请的目的还包括提供一种安装有上述自润滑轴的作业机械。
本申请的实施例可以这样实现：
第一方面，本申请实施例提供一种自润滑轴，包括具有内腔的轴体和活动设置于所述轴体内腔中的活塞，所述轴体的内腔沿所述轴体的轴向延伸，所述活塞的一侧为储油腔，所述储油腔用于储存润滑剂，所述轴体上设置有出油通道，所述出油通道的一端连通所述储油腔，另一端延伸至所述轴体外周面；所述活塞通过弹性件与所述轴体连接，所述弹性件用于向所述活塞施加作用力以压缩所述储油腔。
在本申请可选的实施例中，所述轴体的端面上设置有注油口，所述注油口通过注油通道连通于所述储油腔；所述注油通道埋设于所述轴体的外周面和内周面之间。
在本申请可选的实施例中，所述注油口处设置有油杯。
在本申请可选的实施例中，所述活塞背离所述储油腔的一侧与所述轴体的部分内壁形成非储油腔。
所述弹性件为能够提供推力的压缩弹簧，所述弹性件位于所述非储油腔，或者，所述弹性件为能够提供拉力的拉伸弹簧，所述弹性件位于所述储油腔。
所述非储油腔通过气孔连通所述轴体外部。
在本申请可选的实施例中，所述轴体的内腔中设置有两个所述活塞，两个所述活塞之间形成所述储油腔，两个所述弹性件分别连接于两个所述活塞并向两个所述活塞提供相向运动的力。
在本申请可选的实施例中，所述轴体的内腔中设置有两个所述活塞，两个所述活塞之间设置有所述弹性件，所述弹性件的两端分别连接于两个所述活塞，并向两个所述活塞提供相背运动的力。
在本申请可选的实施例中，所述轴体内具有两个所述内腔，两个所述内腔在所述轴体的轴向上间隔并通过挡板隔开，两个所述内腔中分别设置有一个所述活塞，以将所述内腔分隔为所述储油腔和所述非储油腔；两个所述活塞和所述挡板之间分别连接有一个所述弹性件，两个所述储油腔各自通过一条所述出油通道连通内部和外部。
在本申请可选的实施例中，所述活塞包括第一活塞和第二活塞，所述弹性件包括第一弹性件和第二弹性件，所述轴体的内腔设置有第一挡板和第二挡板，所述第一活塞通过所述第一弹性件连接于所述第一挡板，所述第二活塞通过第二弹性件连接于所述第二挡板，所述第一弹性件和所述第二弹性件分别向所述第一活塞和所述第二活塞提供相互远离的力；所述第一挡板位于所述第二挡板与所述第二活塞之间，所述第一弹性件穿过所述第二挡板上的通孔，所述第二挡板位于所述第一挡板和所述第一活塞之间，所述第二弹性件穿过所述第一挡板上的通孔。
在本申请可选的实施例中，所述轴体的至少一个端部设置有透明部以便观察所述轴体内部。
所述轴体的端部设置有用于封堵所述内腔的一端的端盖，所述端盖上设置有螺孔，所述透明部为亚克力销钉，所述亚克力销钉螺纹连接于所述螺孔。
第二方面，本申请提供一种作业机械，包括上述第一方面提供的自润滑轴。
本申请实施例的有益效果包括，例如：
本申请实施例提供的自润滑轴包括具有内腔的轴体和活动设置于轴体内腔中的活塞，轴体的内腔沿轴体的轴向延伸，活塞的一侧为储油腔，储油腔用于储存润滑剂，轴体上设置有出油通道，出油通道的一端连通储油腔，另一端延伸至轴体外周面；活塞通过弹性件与轴体连接，弹性件用于向活塞施加作用力以压缩储油腔。因此，该自润滑轴能够源源不断地、自发地将轴体的储油腔内储存的润滑剂挤压至轴体外表面，以达到润滑效果，避免了人工频繁补充润滑剂，并且在弹性件的主动挤压下，轴体外表面的润滑剂充盈，润滑效果好。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，应当理解，以下附图仅示出了本申请的某些实施例，因此不应被看作是对范围的限定，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他相关的附图。
图1为本申请第一种实施例提供的自润滑轴的爆炸视图；
图2为本申请第一种实施例提供的自润滑轴的剖视图；
图3为本申请第一种实施例提供的自润滑轴的注油通道的示意图；
图4为本申请第二种实施例提供的自润滑轴的剖视图；
图5为本申请第三种实施例提供的自润滑轴的剖视图；
图6为本申请第四种实施例提供的自润滑轴的剖视图；
图7为本申请第五种实施例提供的自润滑轴的剖视图；
图8为本申请第六种实施例提供的自润滑轴的剖视图。
图标：010-自润滑轴；100-轴体；101-出油通道；102-注油口；103-油杯；104-注油通道；105-储油腔；106-非储油腔；107-气孔；110-第一端盖；112-透明部；120-第二端盖；130-挡板；132-第一挡板；134-第二挡板；200-活塞；201-第一活塞；202-第二活塞；210-弹性件；211-第一弹性件；212-第二弹性件；220-密封圈。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。通常在此处附图中描述和示出的本申请实施例的组件可以以各种不同的配置来布置和设计。
因此，以下对在附图中提供的本申请的实施例的详细描述并非旨在限制要求保护的本申请的范围，而是仅仅表示本申请的选定实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步定义和解释。
在本申请的描述中，需要说明的是，若出现术语“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，或者是本申请产品使用时惯常摆放的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
此外，若出现术语“第一”、“第二”等仅用于区分描述，而不能理解为指示或暗示相对重要性。
需要说明的是，在不冲突的情况下，本申请的实施例中的特征可以相互结合。
图1为本申请第一种实施例提供的自润滑轴010的爆炸视图；图2为本申请第一种实施例提供的自润滑轴010的剖视图；图3为本申请第一种实施例提供的自润滑轴010的注油通道104的示意图。请参考图1至图3，本实施例提供了一种自润滑轴010，包括具有内腔的轴体100和活动设置于轴体100内腔中的活塞200，轴体100的内腔沿轴体100的轴向延伸，轴体100的内腔被活塞200分隔为储油腔105和非储油腔106，储油腔105用于储存润滑剂，轴体100上设置有出油通道101，出油通道101的一端连通储油腔105，另一端延伸至轴体100外周面；活塞200通过弹性件210与轴体100连接，活塞200能够在弹性件210的作用力下相对于轴体100沿轴向运动，以压缩储油腔105。可以理解，活塞200在弹性件210的作用下，可以挤压储油腔105中的润滑剂(比如机油等)，令润滑剂从出油通道101流到轴体100的外侧面，此时润滑剂便可以在轴体100的外侧面与外部结构(比如臂架)之间起到润滑作用。该自润滑轴010内的润滑剂可以在活塞200和弹性件210的作用下不断向外周面供应润滑剂，避免了操作人员频繁地手动在轴表面添加润滑剂，本申请的自润滑轴010的弹性件210提供了一定预压力，润滑剂具有被挤出到轴体100外周面的动力，因此可以保证自润滑轴010的外表面润滑剂保持充盈，因此润滑效果好。
在图1至图3所示的实施例中，轴体100的两端通过端盖来封堵，两个端盖分别为第一端盖110和第二端盖120。端盖与轴体100之间的连接可以是螺纹连接、焊接或者通过紧固件连接，并保证密封性能。
在可选的实施方式中，轴体100的至少一个端部设置有透明部112以便观察轴体100内部。在图1的实施例中，可选的，第一端盖110上设置有螺孔，透明部112为亚克力销钉，亚克力销钉螺纹连接于螺孔。操作人员可以通过亚克力销钉，来观察轴体100内腔的情况，比如活塞200的位置、润滑剂的剩余量等。当然，透明部112也可以通过其他的材料代替，比如采用玻璃视窗。
在本实施例中，轴体100的端面上设置有注油口102，注油口102通过注油通道104连通于储油腔105。进一步的，注油口102处设置有油杯103。如图3所示，注油通道104埋设于轴体100的外周面和内周面之间，沿轴向延伸至对应储油腔105的位置后，再径向向内延伸与储油腔105连通。在本实施例中，注油口102位于第一端盖110所在的第一端，在其他实施例中，注油口 102也可以位于第二端盖120所在的一端。
如图2所示，本申请中，弹性件210为能够提供推力的压缩弹簧，弹性件210位于非储油腔106。弹性件210的一端连接于活塞200，另一端连接于第二端盖120，弹性件210的两端可以采用焊接的方式连接对应的部件。为了保证活塞200周侧的密封性，活塞200外箍设有密封圈220。
本实施例提供的自润滑轴010的工作原理如下：
①注油阶段：将轴体100与外部结构(比如臂架)装配后，打开油杯103，通过注油口102向轴体100内部储油腔105注入润滑剂，润滑剂的压力将推动活塞200和密封圈220向右(以图2方位为准)移动，使得作为弹性件210的压缩弹簧被压缩，压缩弹簧存储压力。当注入了与弹簧压紧时油腔体积等量的润滑剂时，停止注油，安装拧紧油杯103。
②润滑阶段：弹性件210存储的压力，在出油通道101的出口的释压作用下缓慢释放，推动活塞200和密封圈220向左(以图2方位为准)移动，从而压缩弹簧被释放，储油腔105内注入的润滑剂将通过出油通道101流入轴体100与外部结构的配合处，达到连续不断的润滑效果。
③观测阶段：使用者可通过第一端盖110上的透明部112(也即本实施例的亚克力销钉)，观察轴体100内的储油腔105。开始注满润滑剂时显示淡黄色，随着压缩弹簧推动活塞200和密封圈220逐渐向左移动，亚克力销钉显示的颜色将会逐步加深，变为活塞200的颜色(活塞200涂有与淡黄色不同的深色)。当使用者通过亚克力销钉观察到颜色彻底变为活塞200的颜色时，需重新通过注油口102注油，重新实施阶段①。
该实施例提供的自润滑轴010的有益效果是：
1.注油后弹性件210的预紧压力，使轴体100上出油通道101的出口连续不断地为轴体100与外部装配结构的接触位置注入润滑剂，方案可靠性高，不易失效。
2.用户使用时，只需安装好自润滑轴010后，通过注油口102注入定量润滑剂即可，注入量与弹簧压紧时的油腔体积相等，操作方便可靠。
3.自润滑轴010通过自润滑的方式，避免了润滑不及时造成的轴体100 磨损等问题，使用寿命增长。
4.通过自润滑方式，连续不断地注入润滑剂，使轴体100外侧和外部结构装配位置磨损情况减轻，避免了异响的问题。
图4为本申请第二种实施例提供的自润滑轴010的剖视图。请参照图4，该实施例提供的自润滑轴010与图2所示的实施例相似，但不同之处在于弹性件210为能够提供拉力的拉伸弹簧，弹性件210位于储油腔105。以图4所示方位为准，第二端盖120与活塞200之间的区域为储油腔105，第一端盖110与活塞200之间的区域为非储油腔106。因此注油通道104应当连通至活塞200右侧的储油腔105。
图5为本申请第三种实施例提供的自润滑轴010的剖视图。请参照图5，在本实施例中，轴体100的内腔中设置有两个活塞200，两个活塞200之间形成储油腔105。两个弹性件210分别连接于两个活塞200并向两个活塞200提供相向运动的力。出油通道101位于两个活塞200之间的位置。在本实施例中，弹性件210为压缩弹簧，两个弹性件210位于非储油腔106，并抵持于轴体100两端的端盖。采用图5实施例的结构，可以实现与图2实施例的相似的效果。当然在本实施例中，注油通道104(图中未示出)应当连通至两个活塞200之间的位置，使得能够向储油腔105注入润滑剂。
图6为本申请第四种实施例提供的自润滑轴010的剖视图。请参照图6，在本实施例中，轴体100内具有两个内腔，两个内腔在轴体100的轴向上间隔并通过挡板130隔开，两个内腔中分别设置有一个活塞200，两个活塞200分别将各自所处的内腔分隔为储油腔105和非储油腔106。两个活塞200和挡板130之间分别连接有一个弹性件210，在本实施例中，弹性件210为压缩弹簧，活塞200与挡板130之间的区域为非储油腔106，活塞200与端盖之间的区域为储油腔105。两个储油腔105各自通过一条出油通道101连通内部和外部。
在图6的实施例中，两个非储油腔106通过气孔107连通轴体100的外部。应当理解，气孔107可以平衡非储油腔106和轴体100外部的气压，避免非储油腔106产生负压而导致活塞200无法继续向储油腔105推送。在本申请的其他实施例中，非储油腔106都可以增设气孔107连通轴体100的外部。
应理解，本实施例中的注油通道104应分出两个支路，对应两个出口，分 别能够将润滑剂引入两个储油腔105中。
图7为本申请第五种实施例提供的自润滑轴010的剖视图。请参照图7，与图5实施例的自润滑轴010相似，不同之处在于采用了一个弹性件210，弹性件210为拉伸弹簧，并连接于两个活塞200之间。因此挡板130与活塞200之间为储油腔105，活塞200与端盖之间为非储油腔106，弹性件210位于储油腔105内。其实现的效果与图5实施例的自润滑轴010相似。
图8为本申请第六种实施例提供的自润滑轴的剖视图。请参照图8，本实施例提供的自润滑轴010与图6实施例提供的自润滑轴类似，活塞包括第一活塞201和第二活塞202，弹性件包括第一弹性件211和第二弹性件212。不同之处在于，轴体100的内腔设置有第一挡板132和第二挡板134，第一活塞201通过第一弹性件211连接于第一挡板132，第二活塞202通过第二弹性件212连接于第二挡板134。在本实施例中，第一弹性件211和第二弹性件212均为压缩弹簧，分别向第一活塞201和第二活塞202提供相互远离的力。第一挡板132位于第二挡板134与第二活塞202之间，第一弹性件211穿过第二挡板134上的通孔，第二挡板134位于第一挡板132和第一活塞201之间，第二弹性件212穿过第一挡板132上的通孔。具体的，第一弹性件211可以为两个，在图中竖直方向上间隔排布；第二弹性件212可以为两个，在图中水平方向上排布(只显示出一个)。
如图8所示，第一活塞201左侧和第二活塞202的右侧分别形成储油腔105，二者之间形成非储油腔106。应理解，压缩弹簧在压缩到极限位置时，具有最小压缩长度，其中，无法进一步压缩的部分长度不能作为弹簧的有效行程区间。因此，相较于图6实施例中的自润滑轴010的完全不重合的两个弹性件210，在本实施例中，第一弹性件211和第二弹性件212的无法压缩的部分长度至少一部分是重合的，因此意味着两个弹性件的非有效行程区间至少部分重合，因此可以使得整个自润滑轴010的轴向向上，有效行程区间占比更大，能够润滑剂的存储率更高。另外，在本实施例中，由于第一挡板132和第二挡板134上具有通孔，可以供空气流通，因此只需要一个气孔107即可。
本申请实施例还提供一种作业机械(图中未示出)，作业机械包括至少两节臂架，臂架之间通过本申请上述实施例提供的自润滑轴010连接。由于安装 了本申请实施例提供的自润滑轴010，因此该作业机械的臂架连接处具有较好的润滑效果。
综上所述，本申请实施例提供的自润滑轴包括具有内腔的轴体和活动设置于轴体内腔中的活塞，轴体的内腔沿轴体的轴向延伸，活塞的一侧为储油腔，储油腔用于储存润滑剂，轴体上设置有出油通道，出油通道的一端连通储油腔，另一端延伸至轴体外周面；活塞通过弹性件与轴体连接，弹性件用于向活塞施加作用力以压缩储油腔。因此，该自润滑轴能够源源不断地、自发地将轴体的储油腔内储存的润滑剂挤压至轴体外表面，以达到润滑效果，避免了人工频繁补充润滑剂，并且在弹性件的主动挤压下，轴体外表面的润滑剂充盈，润滑效果好。本申请实施例提供的作业机械安装有上述的自润滑轴。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (10)

  1. 一种自润滑轴，其中，包括具有内腔的轴体(100)和活动设置于所述轴体(100)内腔中的活塞(200)，所述轴体(100)的内腔沿所述轴体(100)的轴向延伸，所述活塞(200)的一侧为储油腔(105)，所述储油腔(105)用于储存润滑剂，所述轴体(100)上设置有出油通道(101)，所述出油通道(101)的一端连通所述储油腔(105)，另一端延伸至所述轴体(100)外周面；所述活塞(200)通过弹性件(210)与所述轴体(100)连接，所述弹性件(210)用于向所述活塞(200)施加作用力以压缩所述储油腔(105)。
  2. 根据权利要求1所述的自润滑轴，其中，所述轴体(100)的端面上设置有注油口(102)，所述注油口(102)通过注油通道(104)连通于所述储油腔(105)；所述注油通道(104)埋设于所述轴体(100)的外周面和内周面之间。
  3. 根据权利要求2所述的自润滑轴，其中，所述注油口(102)处设置有油杯(103)。
  4. 根据权利要求1所述的自润滑轴，其中，所述活塞(200)背离所述储油腔(105)的一侧与所述轴体(100)的部分内壁形成非储油腔(106)；
    所述弹性件(210)为能够提供推力的压缩弹簧，所述弹性件(210)位于所述非储油腔(106)，或者，所述弹性件(210)为能够提供拉力的拉伸弹簧，所述弹性件(210)位于所述储油腔(105)；
    所述非储油腔(106)通过气孔(107)连通所述轴体(100)外部。
  5. 根据权利要求1所述的自润滑轴，其中，所述轴体(100)的内腔中设置有两个所述活塞(200)，两个所述活塞(200)之间形成所述储油腔(105)，两个所述弹性件(210)分别连接于两个所述活塞(200)并向两个所述活塞(200)提供相向运动的力。
  6. 根据权利要求1所述的自润滑轴，其中，所述轴体(100)的内腔中设置有两个所述活塞(200)，两个所述活塞(200)之间设置有所述弹性件(210)，所述弹性件(210)的两端分别连接于两个所述活塞(200)，并向两个所述活塞(200)提供相背运动的力。
  7. 根据权利要求1所述的自润滑轴，其中，所述轴体(100)内具有两个所述内腔，两个所述内腔在所述轴体(100)的轴向上间隔并通过挡板(130)隔开，两个所述内腔中分别设置有一个所述活塞(200)，以将所述内腔分隔为储油腔(105)和非储油腔(106)；两个所述活塞(200)和所述挡板(130)之间分别连接有一个所述弹性件(210)，两个所述储油腔(105)各自通过一条所述出油通道(101)连通内部和外部。
  8. 根据权利要求1所述的自润滑轴，其中，所述活塞(200)包括第一活塞(201)和第二活塞(202)，所述弹性件(210)包括第一弹性件(211)和第二弹性件(212)，所述轴体(100)的内腔设置有第一挡板(132)(130)和第二挡板(134)，所述第一活塞(201)通过所述第一弹性件(211)连接于所述第一挡板(132)，所述第二活塞(202)通过第二弹性件(212)连接于所述第二挡板(134)，所述第一弹性件(211)和所述第二弹性件(212)分别向所述第一活塞(201)和所述第二活塞(202)提供相互远离的力；所述第一挡板(132)位于所述第二挡板(134)与所述第二活塞(202)之间，所述第一弹性件(211)穿过所述第二挡板(134)上的通孔，所述第二挡板(134)位于所述第一挡板(132)和所述第一活塞(201)之间，所述第二弹性件(212)穿过所述第一挡板(132)上的通孔。
  9. 根据权利要求1所述的自润滑轴，其中，所述轴体(100)的至少一个端部设置有透明部以便观察所述轴体(100)内部；
    所述轴体(100)的端部设置有用于封堵所述内腔的一端的端盖，所述端盖上设置有螺孔，所述透明部为亚克力销钉，所述亚克力销钉螺纹连接于所述螺孔。
  10. 一种作业机械，其中，包括权利要求1-9中任一项所述的自润滑轴(010)。
PCT/CN2020/112210 2019-12-31 2020-08-28 自润滑轴和作业机械 WO2021135328A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911407882.2 2019-12-31
CN201911407882.2A CN110985522B (zh) 2019-12-31 2019-12-31 自润滑轴和作业机械

Publications (1)

Publication Number Publication Date
WO2021135328A1 true WO2021135328A1 (zh) 2021-07-08

Family

ID=70079569

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/112210 WO2021135328A1 (zh) 2019-12-31 2020-08-28 自润滑轴和作业机械

Country Status (2)

Country Link
CN (1) CN110985522B (zh)
WO (1) WO2021135328A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110985522B (zh) * 2019-12-31 2021-03-12 三一汽车制造有限公司 自润滑轴和作业机械
CN112908179B (zh) * 2021-02-05 2022-08-26 昆山国显光电有限公司 显示模组及显示装置
CN115092578A (zh) * 2022-06-28 2022-09-23 长沙中联重科环境产业有限公司 垃圾压缩车填装器滑板轨道结构

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0733848A2 (fr) * 1995-03-24 1996-09-25 Carlos Equiza Urtasun Doseur pour graissage continu
CN202756874U (zh) * 2012-08-14 2013-02-27 硕兴工业股份有限公司 具储油观测窗的黄油枪结构
CN203131394U (zh) * 2013-01-22 2013-08-14 中联重科股份有限公司 销轴
CN203361220U (zh) * 2013-06-14 2013-12-25 三一重通机械有限公司 一种自润滑销轴及推土机
CN109386716A (zh) * 2017-08-14 2019-02-26 德纳重型车辆系统集团有限责任公司 带有中空的主销的自润滑主销接头
CN110985522A (zh) * 2019-12-31 2020-04-10 三一汽车制造有限公司 自润滑轴和作业机械

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0733848A2 (fr) * 1995-03-24 1996-09-25 Carlos Equiza Urtasun Doseur pour graissage continu
CN202756874U (zh) * 2012-08-14 2013-02-27 硕兴工业股份有限公司 具储油观测窗的黄油枪结构
CN203131394U (zh) * 2013-01-22 2013-08-14 中联重科股份有限公司 销轴
CN203361220U (zh) * 2013-06-14 2013-12-25 三一重通机械有限公司 一种自润滑销轴及推土机
CN109386716A (zh) * 2017-08-14 2019-02-26 德纳重型车辆系统集团有限责任公司 带有中空的主销的自润滑主销接头
CN110985522A (zh) * 2019-12-31 2020-04-10 三一汽车制造有限公司 自润滑轴和作业机械

Also Published As

Publication number Publication date
CN110985522A (zh) 2020-04-10
CN110985522B (zh) 2021-03-12

Similar Documents

Publication Publication Date Title
WO2021135328A1 (zh) 自润滑轴和作业机械
CN206017311U (zh) 一种用于气动执行器的自润滑活塞缸
CN213420599U (zh) 一种免维护双联齿轨轮组
CN204784290U (zh) 一种活塞结构
CN201212519Y (zh) 销轴装置
CN211009895U (zh) 液压油缸
CN206874473U (zh) 内啮合齿轮输油泵
CN116517957A (zh) 一种滑动轴承
CN206398331U (zh) 一种泄压防外溢的润滑脂加注设备
CN202149024U (zh) 内啮合齿轮泵及填隙组件
WO2018036442A1 (zh) 涂料输送装置中的密封圈润滑结构
CN214838237U (zh) 一种汽车双联齿轮
CN209212686U (zh) 一种泄压式摆动油缸
CN214008077U (zh) 一种螺旋输送机轴端密封结构
CN205117976U (zh) 铰接自润滑结构及具有其的泵车
CN211202809U (zh) 卷帘门的传动齿轮
WO2020006985A1 (zh) 涡旋压缩机及具有其的车辆
CN106763500A (zh) 一种密封链条
CN112081813A (zh) 一种转动轴的安装结构
CN208380953U (zh) 一种泵轴用机械密封装置
CN111120660A (zh) 双唇油封
CN216894860U (zh) 轴向柱塞泵密封装置
CN212202420U (zh) 一种压缩机用缸体
CN214742863U (zh) 一种具有泄油槽的汽车传动轴
CN208997198U (zh) 一种用于绞车支撑轴承部位的双边密封圈密封结构

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20911274

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20911274

Country of ref document: EP

Kind code of ref document: A1