Grease filling device and grease filling method

Abstract

The embodiment of the invention provides a grease filling device and a grease filling method, and relates to the field of manufacturing tools. The grease filling device comprises a locking piece, a clamping piece, a grease filling head and a grease guide piece. Wherein the oil injection head is installed in the oil groove, the oil guide piece is contained in the clamping piece and communicated with the oil injection head, the clamping piece is used for clamping the oil injection head, and the locking piece is arranged on the clamping piece in a sleeving mode and used for locking the clamping piece. The grease filling device is used for preventing grease leakage in the filling process by installing the grease filling head and communicating with the grease guide piece. The clamping piece is used for clamping the oil injection head, the locking piece is used for locking the clamping piece, the position stability of the oil guide piece in the filling process can be ensured, shaking caused by too long filling operation time is avoided, and then the convenience of oil filling operation is improved.

Description

Technical Field

[0001] The invention relates to the field of manufacturing tools, and in particular to a grease filling device and a grease filling method. Background Art

[0002] Existing large-scale mechanical equipment is usually equipped with an oil tank at the grease storage part to reserve enough grease filling space for the convenience of manual filling by the staff. The oil tank can also collect the grease missed during the filling process to avoid spillage and environmental impact. However, the existing grease filling process is inconvenient to operate and prone to leakage. Summary of the invention

[0003] The invention provides a grease filling device and a grease filling method, which can prevent grease leakage and improve operation convenience.

[0004] The embodiments of the present invention can be implemented as follows:

[0005] An embodiment of the present invention provides a grease filling device, which includes:

[0006] Locking parts, clamping parts, oil filling heads and oil guide parts;

[0007] Wherein, the oil filling head is installed in the oil tank, the oil guide member is accommodated in the clamping member and communicated with the oil filling head, the clamping member is used to clamp the oil filling head, and the locking member is sleeved on the clamping member and used to lock the clamping member.

[0008] Optionally, the clamping member includes a sliding plug, a clamping claw and an elastic member, the sliding plug can be slidably accommodated in the clamping member, the two ends of the elastic member are respectively connected to the sliding plug and the clamping claw, the clamping claw is hinged to the sliding plug, and the clamping claw is used to maintain a clamping state under the action of the elastic member.

[0009] Optionally, a hinge groove is provided at one end of the sliding plug close to the oil filling head, and the hinge groove extends along the axial direction of the sliding plug. At least part of the clamping jaw is accommodated in the hinge groove, and a pin hole is provided on the side wall of the hinge groove, and the pin hole is hinged to the clamping jaw through a rotating pin.

[0010] Optionally, the locking member includes an outer cylinder and a first locking block, the outer cylinder is open at one end close to the oil filling head, and a through hole is formed at the other end; the clamping member also includes a sliding rod, the sliding rod is connected to the end of the sliding plug away from the clamping claw, the sliding rod is accommodated in the through hole, the first locking block is spirally matched with the sliding rod, the inner end wall of the outer cylinder is used to resist the end face of the sliding plug away from the clamping claw, and the inner side wall of the outer cylinder is used to resist the clamping claw.

[0011] Optionally, the locking member further comprises a locking block, wherein the locking block is arranged on an inner side wall of an end of the outer tube away from the locking block, and the locking block is used to abut against the clamping claw.

[0012] Optionally, a first limiting groove is formed on the side wall of the outer cylinder, and the first limiting groove extends along the axial direction of the outer cylinder. A guide block is protruding from the side wall of the sliding plug, and the guide block is accommodated in the first limiting groove.

[0013] And / or, a second limiting groove is formed on the side wall of the outer tube, the second limiting groove extends along the axial direction of the outer tube, and a handle is protruded from the side wall of the sliding plug, the handle is accommodated in the first limiting groove and protrudes from the outer tube.

[0014] Optionally, the oil filling head has a mounting portion, a positioning portion and a guide portion which are connected in sequence, the outer diameter of the positioning portion is smaller than both the outer diameter of the mounting portion and the outer diameter of the guide portion, the clamping member is used to clamp the positioning portion, and the guide portion is used to guide the clamping member.

[0015] Optionally, the oil filling head further comprises a sealing ball, the sealing ball is used to seal an opening at one end of the guide portion away from the positioning portion, and the oil guide member is used to resist the sealing ball and communicate with the positioning portion.

[0016] Optionally, the oil guide member includes a communicating abutment portion and a transmission portion, the abutment portion is sleeved on the oil filling head and communicated with the oil filling head, the clamping member also includes a second drive locking block, the transmission portion is accommodated in the clamping member and spirally cooperates with the second drive locking block.

[0017] An embodiment of the present invention further provides a grease filling method, which is applied to a grease filling device. The grease filling method comprises:

[0018] Controlling the oiling head to be installed in the oil tank;

[0019] Controlling the clamping member to clamp the oil filling head;

[0020] Controlling the locking member to lock the clamping member;

[0021] The oil guide member is controlled to communicate with the oil filling head to perform a filling operation.

[0022] The beneficial effects of the grease filling device and grease filling method of the embodiments of the present invention include, for example:

[0023] The grease filling device includes a locking piece, a clamping piece, an oil filling head and an oil guide piece; wherein the oil filling head is installed in the oil tank, the oil guide piece is accommodated in the clamping piece and communicated with the oil filling head, the clamping piece is used to clamp the oil filling head, and the locking piece is sleeved on the clamping piece and used to lock the clamping piece. The grease filling device is installed with the oil filling head and communicated with the oil guide piece to prevent grease leakage during the filling process. The clamping piece is used to clamp the oil filling head, and the locking piece is used to lock the clamping piece, which can ensure the position stability of the oil guide piece during the filling process, avoid shaking due to the long filling operation time, and thus improve the convenience of the grease filling operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic structural diagram of a grease filling device provided in an embodiment of the present invention;

[0026] Figure 2 A schematic structural diagram of one end of a sliding plug connected to a clamping jaw provided in an embodiment of the present invention;

[0027] Figure 3 It is a schematic diagram of the end structure of the supporting portion provided in an embodiment of the present invention.

[0028] Icons: 100-grease filling device; 110-clamping member; 111-sliding plug; 1111-hinge groove; 1112-pin hole; 1113-guide block; 1114-handle; 112-clamping claw; 113-elastic member; 114-second drive lock block; 115-sliding rod; 120-locking member; 121-outer cylinder; 1211-first limiting groove; 1212-second limiting groove; 122-first drive lock block; 123-locking block; 130-oil filling head; 131-installation part; 132-positioning part; 133-guide part; 134-sealing ball; 140-oil guide member; 141-supporting part; 1411-outer boss; 1412-inner boss; 1413-oil outlet hole; 1414-sealing ring; 1415-center ejector pin; 142-transmission part. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, 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. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0034] The terms "comprises," "comprising," or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0035] Unless otherwise clearly specified and limited, the terms "disposed", "connected" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0037] Please refer to Figure 1-Figure 3 The grease filling device 100 and the grease filling method provided in the embodiments of the present invention can solve the above-mentioned problems, which will be described in detail below.

[0038] The grease filling device 100 includes a locking member 120, a clamping member 110, an oiling head 130 and an oil guiding member 140; wherein the oiling head 130 is installed in the oil tank, the oil guiding member 140 is accommodated in the clamping member 110 and communicated with the oiling head 130, the clamping member 110 is used to clamp the oiling head 130, and the locking member 120 is sleeved on the clamping member 110 and is used to lock the clamping member 110.

[0039] The grease filling device 100 is installed with an oil filling head 130 and connected with an oil guide member 140 to prevent grease leakage during the filling process. The clamping member is used to clamp the oil filling head 130, and the locking member 120 is used to lock the clamping member, which can ensure the position stability of the oil guide member 140 during the filling process, avoid shaking due to a long filling operation time, and thus improve the convenience of the grease filling operation.

[0040] refer to Figure 1 The clamping member 110 includes a sliding plug 111, a clamping claw 112 and an elastic member 113. The sliding plug 111 can be slidably accommodated in the clamping member 110. The two ends of the elastic member 113 are respectively connected to the sliding plug 111 and the clamping claw 112. The clamping claw 112 is hinged to the sliding plug 111. The clamping claw 112 is used to maintain a clamping state under the action of the elastic member 113.

[0041] After the oiling head 130 is installed, the sliding plug 111 is moved to drive the clamping jaw 112 to move toward the oiling head 130. The oiling head 130 can play a guiding role in the process of contacting with the clamping jaw 112, compressing the elastic member 113, and the clamping jaw 112 can be clamped at a suitable position on the oiling head 130 under the elastic tension of the elastic member 113, thereby achieving rough positioning.

[0042] It is worth noting that the number of the clamping jaws 112 is at least two, so as to facilitate clamping on the oiling head 130. In this embodiment, the number of the clamping jaws 112 is three, and the three clamping jaws 112 are symmetrically arranged about the center of the sliding plug 111, which helps to ensure the clamping stability.

[0043] refer to Figure 1 and Figure 2 A hinge groove 1111 is provided at one end of the sliding plug 111 close to the oil filling head 130, and the hinge groove 1111 extends along the axial direction of the sliding plug 111. At least part of the clamping jaw 112 is accommodated in the hinge groove 1111, and a pin hole 1112 is provided on the side wall of the hinge groove 1111. The pin hole 1112 is hinged to the clamping jaw 112 through a rotating pin.

[0044] Specifically, the hinge slot 1111 is in the shape of a long strip, so that the clamping jaw 112 can also move in the hinge slot 1111 during the rotation process, thereby preventing the clamping jaw 112 from being deflected due to excessive clamping force or external force. In addition, the number of hinge slots 1111 is consistent with the number of clamping jaws 112, thereby ensuring that each clamping jaw 112 has an anti-deflection limit function.

[0045] refer to Figure 1 The locking member 120 includes an outer cylinder 121 and a first locking block 122. The outer cylinder 121 is open at one end close to the oiling head 130, and a through hole is formed at the other end. The clamping member 110 also includes a sliding rod 115, which is connected to the end of the sliding plug 111 away from the clamping claw 112. The sliding rod 115 is accommodated in the through hole. The first locking block 122 is screwed together with the sliding rod 115. The inner end wall of the outer cylinder 121 is used to resist the end surface of the sliding plug 111 away from the clamping claw 112, and the inner side wall of the outer cylinder 121 is used to resist the clamping claw 112.

[0046] During use, the outer cylinder 121 is covered on the outside of the sliding plug 111 to guide the sliding plug 111. Before controlling the clamping jaws 112 to hold the oiling head 130, first make the outer cylinder 121 close to the oiling head 130, then fix the outer cylinder 121, and then screw the first drive lock block 122 to convert the rotary motion into linear motion through spiral fit, thereby driving the sliding plug 111 and the clamping jaws 112 close to the oiling head 130 until the clamping jaws 112 are held to a suitable position on the oiling head 130. When it is necessary to separate the clamping jaws 112 and the oiling head 130, screw the first drive lock block 122 in the opposite direction, thereby driving the sliding plug 111 and the clamping jaws 112 away from the oiling head 130. The inner end wall of the outer cylinder 121 close to the first drive lock block 122 can support the sliding plug 111, thereby preventing the sliding plug 111 from sliding out.

[0047] It should be noted that, the first drive locking block 122 can be screwed first so that the jaw 112 extends out of the outer cylinder 121, and then the outer cylinder 121 is moved synchronously to clamp the jaw 112 on the oiling head 130; then, with the sliding plug 111 fixed, the first drive locking block 122 is screwed again so that the outer cylinder 121 moves toward the oiling head 130 and is sleeved on the outside of the jaw 112 to lock the jaw 112, thereby improving the clamping stability and further ensuring the reliability of the filling operation.

[0048] That is, in actual operation, the outer cylinder 121 can be moved together with the sliding plug 111 (make sure that the jaws 112 are located on the outside of the outer cylinder 121), so that the jaws 112 are clamped on the oiling head 130, and then the outer cylinder 121 is moved to lock the jaws 112; the sliding plug 111 can also be moved alone (the jaws 112 can be located on the inside of the outer cylinder 121 before moving), so that the jaws 112 extend out of the outer cylinder 121 and then clamp the oiling head 130, and then the outer cylinder 121 is moved to lock the jaws 112.

[0049] refer to Figure 1 In order to further improve the locking effect of the clamping jaw 112 , the locking member 120 may further include a locking block 123 , which is disposed on the inner side wall of the end of the outer tube 121 away from the locking block, and is used to resist the clamping jaw 112 .

[0050] refer to Figure 1 A first limiting groove 1211 is provided on the side wall of the outer cylinder 121, and the first limiting groove 1211 extends along the axial direction of the outer cylinder 121. A guide block 1113 is convexly provided on the side wall of the sliding plug 111, and the guide block 1113 is accommodated in the first limiting groove 1211. Through the cooperation between the guide block 1113 and the first limiting groove 1211, on the one hand, the movement of the sliding plug 111 can be guided, and on the other hand, it is convenient to limit the sliding plug 111 to prevent the sliding plug 111 from easily rotating relative to the outer cylinder 121.

[0051] In addition, a second limiting groove 1212 is provided on the side wall of the outer tube 121, and the second limiting groove 1212 extends along the axial direction of the outer tube 121. A handle 1114 is protruded from the side wall of the sliding plug 111, and the handle 1114 is accommodated in the first limiting groove 1211 and protrudes from the outer tube 121. Through the cooperation of the handle 1114 and the second limiting groove 1212, the functions of guiding and circumferential limiting can also be achieved, and it is also convenient to directly apply force through the handle 1114 to achieve a power-assisting effect.

[0052] refer to Figure 1The oiling head 130 is connected to the mounting portion 131, the positioning portion 132 and the guide portion 133 in sequence. The outer diameter of the positioning portion 132 is smaller than the outer diameter of the mounting portion 131 and the outer diameter of the guide portion 133. The clamping member 110 is used to clamp the positioning portion 132, and the guide portion 133 is used to guide the clamping member 110.

[0053] Specifically, the mounting portion 131 is used to be mounted and fixed to the oil tank, and can be customized according to the size of the oil tank. The positioning portion 132 is used to cooperate with the clamping claw 112 in the clamping member 110, and the guide portion 133 is used to guide the clamping claw 112. When the clamping claw 112 approaches the oiling head 130, it will first contact the guide portion 133.

[0054] In this embodiment, the guide portion 133 is thick in the middle and thin at both ends, and the side wall of the guide portion 133 is inclined from the end to the middle position, which is convenient for separating the clamping jaws 112 so that the clamping jaws 112 enter the positioning portion 132 for clamping operations, or move away from the positioning portion 132 for removal after the operation is completed.

[0055] refer to Figure 1 The oiling head 130 further includes a sealing ball 134 , which is used to seal an opening at one end of the guide portion 133 away from the positioning portion 132 , and the oil guide member 140 is used to resist the sealing ball 134 and communicate with the positioning portion 132 .

[0056] Before grease is added, the sealing ball 134 can seal and block the end opening of the guide portion 133 to prevent impurities from mixing in. When grease is added, the sealing ball 134 is pushed open by the oil guide 140 to communicate with the inner cavity of the guide portion 133.

[0057] At the same time, in order to ensure that the pushed-open sealing ball 134 can be reset after the grease filling operation, a spring can be connected between the sealing ball 134 and the guide portion 133 .

[0058] Specifically, the oil guide member 140 includes a supporting portion 141 and a transmission portion 142 which are connected to each other. The supporting portion 141 is sleeved on the oil filling head 130 and is connected to the oil filling head 130. The clamping member 110 also includes a second drive locking block 114. The transmission portion 142 is accommodated in the clamping member 110 and is spirally matched with the second drive locking block 114. The motion conversion between rotational motion and linear motion can be achieved through the spiral matching.

[0059] refer to Figure 3The abutting part 141 is in a "towel" annular structure, the upper end of the "towel" is used to communicate with the transmission part 142, the annular edge of the lower end of the "towel" is formed with an outer boss 1411, which is conveniently sleeved on the outer side of the guide part 133, and the annular middle position of the lower end of the "towel" is formed with an inner boss 1412, and a center ejector pin 1415 is formed at the center of the inner boss 1412, which is used to push open the sealing ball 134, and oil outlet holes 1413 are distributed around the center ejector pin 1415 on the inner boss 1412, which are used to achieve communication with the guide part 133 for oil supply. In addition, in order to further improve the sealing performance, the inner side wall of the outer boss 1411 can be inclined and a sealing ring 1414 is installed.

[0060] The abutting portion 141 is limited by the external structure, so that the relative position stability of the abutting portion 141 and the guide portion 133 is higher while the two are connected, thereby further ensuring the reliability of the grease filling operation.

[0061] The embodiment of the present invention further provides a grease filling method, which is applied to the grease filling device 100. The grease filling method includes:

[0062] Step S100: controlling the oiling head 130 to be installed in the oil tank; specifically, the mounting portion 131 is connected and fixed to the oil tank.

[0063] Step S200 : Control the clamping member 110 to clamp the oiling head 130 ; specifically, the sliding plug 111 may be controlled to move to drive the clamping jaw 112 to clamp the positioning portion 132 in the oiling head 130 .

[0064] Step S300 : controlling the locking member 120 to lock the clamping member 110 ; specifically, the relative movement of the outer cylinder 121 and the sliding plug 111 may be controlled so that the locking block 123 abuts against the outer side of the clamping jaw 112 .

[0065] Step S400: Control the oil component to communicate with the oil filling head 130 to perform the filling operation; specifically, control the oil guide component 140 to be close to the oil filling head 130, and push the sealing ball 134 open while the abutting portion 141 is sleeved on the guide portion 133, so as to achieve the connection between the abutting portion 141 and the guide portion 133, and then perform the grease filling operation.

[0066] In summary, the grease filling device and grease filling method provided by the embodiments of the present invention have at least the following advantages:

[0067] (1) The oil filling head 130 can be set to prevent oil leakage during the filling process, and the clamping member and the locking member 120 can ensure the position stability during the filling process, avoid shaking, and improve the convenience of the filling operation;

[0068] (2) The guide portion 133 can be sealed by setting a sealing ball 134 to prevent impurities from being mixed in before clamping and locking and affecting the purity of the grease;

[0069] (3) The “towel”-shaped supporting portion 141 can cooperate with the guide portion 133 to further ensure the relative position stability of the oil guide member 140 and the oil filling head 130 while the sealing ball 134 is pushed open for filling.

[0070] (4) Through the spiral cooperation between the first drive lock block 122 and the sliding rod 115, and the spiral cooperation between the second drive lock block 114 and the transmission part 142, the conversion between rotational motion and linear motion is achieved while minimizing the shaking, which helps to ensure the filling reliability of the overall filling device;

[0071] (5) The grease filling method can reduce the operator's labor intensity and working time through specific operating steps while ensuring the reliability and stability of filling, thereby improving the filling efficiency as much as possible.

[0072] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A grease filling device, characterized in that: include: A clamping member (110), a locking member (120); an oil filling head (130) and an oil guide member (140); The oil filling head (130) is installed in the oil tank, the oil guide member (140) is accommodated in the clamping member (110) and communicated with the oil filling head (130), the clamping member (110) is used to clamp the oil filling head (130), and the locking member (120) is sleeved on the clamping member (110) and is used to lock the clamping member (110).

2. The grease filling device according to claim 1, characterized in that: The clamping member (110) comprises a sliding plug (111), a clamping claw (112) and an elastic member (113); the sliding plug (111) can be slidably accommodated in the clamping member (110); two ends of the elastic member (113) are respectively connected to the sliding plug (111) and the clamping claw (112); the clamping claw (112) is hinged to the sliding plug (111); and the clamping claw (112) is used to maintain a clamping state under the action of the elastic member (113).

3. The grease filling device according to claim 2, characterized in that: A hinge groove (1111) is provided at one end of the sliding plug (111) close to the oil filling head (130), and the hinge groove (1111) extends along the axial direction of the sliding plug (111). At least a part of the clamping jaw (112) is accommodated in the hinge groove (1111), and a pin hole (1112) is provided on the side wall of the hinge groove (1111), and the pin hole (1112) is hinged to the clamping jaw (112) through a rotating pin.

4. The grease filling device according to claim 2, characterized in that: The locking member (120) includes an outer tube (121) and a first locking block (122), wherein one end of the outer tube (121) close to the oiling head (130) is open, and the other end is provided with a through hole; the clamping member (110) further includes a sliding rod (115), wherein the sliding rod (115) is connected to one end of the sliding plug (111) away from the clamping claw (112), and the sliding rod (115) is accommodated in the through hole, and the first locking block (122) is screwed together with the sliding rod (115), and the inner end wall of the outer tube (121) is used to abut against the end surface of the sliding plug (111) away from the clamping claw (112), and the inner side wall of the outer tube (121) is used to abut against the clamping claw (112).

5. The grease filling device according to claim 4, characterized in that: The locking member (120) further comprises a locking block (123), wherein the locking block (123) is arranged on the inner side wall of an end of the outer tube (121) away from the locking block, and the locking block (123) is used to resist the clamping claw (112).

6. The grease filling device according to claim 4, characterized in that: A first limiting groove (1211) is formed on the side wall of the outer cylinder (121), and the first limiting groove (1211) extends along the axial direction of the outer cylinder (121); a guide block (1113) is protrudingly formed on the side wall of the sliding plug (111), and the guide block (1113) is accommodated in the first limiting groove (1211); And / or, a second limiting groove (1212) is formed on the side wall of the outer cylinder (121), and the second limiting groove (1212) extends along the axial direction of the outer cylinder (121); a handle (1114) is protruding from the side wall of the sliding plug (111), and the handle (1114) is accommodated in the first limiting groove (1211) and protrudes from the outer cylinder (121).

7. The grease filling device according to any one of claims 1 to 6, characterized in that: The oil injection head (130) is connected in sequence to a mounting portion (131), a positioning portion (132) and a guide portion (133); the outer diameter of the positioning portion (132) is smaller than both the outer diameter of the mounting portion (131) and the outer diameter of the guide portion (133); the clamping member (110) is used to clamp the positioning portion (132); and the guide portion (133) is used to guide the clamping member (110).

8. The grease filling device according to claim 7, characterized in that: The oil filling head (130) further comprises a sealing ball (134) for sealing an opening at one end of the guide portion (133) away from the positioning portion (132), and the oil guide member (140) is used to resist the sealing ball (134) and communicate with the positioning portion (132).

9. The grease filling device according to any one of claims 1 to 6, characterized in that: The oil guide member (140) comprises a supporting portion (141) and a transmission portion (142) which are connected to each other; the supporting portion (141) is sleeved on the oil filling head (130) and is connected to the oil filling head (130); the clamping member (110) further comprises a second drive locking block (114); the transmission portion (142) is accommodated in the clamping member (110) and is screw-matched with the second drive locking block (114).

10. A grease filling method, characterized in that: Applicable to the grease filling device according to any one of claims 1 to 9, the grease filling method comprises: Controlling the oiling head (130) to be installed in the oil tank; Controlling the clamping member (110) to clamp the oil injection head (130); controlling the locking member (120) to lock the clamping member (110); The oil guide member (140) is controlled to communicate with the oil filling head (130) to perform a filling operation.

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