Sealing device for upper end cover of bearing of fuel injection pump
By designing a multi-seal structure on the fuel injection pump bearing, including sealing rings and sealing rings, the problem of poor sealing effect of existing bearing covers is solved, achieving better sealing effect and protection.
Patent Information
- Application Number
- CN202520527785.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-03-25
AI Technical Summary
The existing bearing cap has poor sealing performance and cannot effectively prevent dust and other foreign objects from entering and prevent grease from overflowing.
A sealing device for the upper end cover of an injection pump bearing was designed. It adopts a multi-seal structure, including a sealing ring, a sealing ring and a sealing sleeve, which are fixed by locking bolts. The rubber sealing ring fits tightly with the sealing groove, and the sealing ring acts as a second dust-blocking mechanism to enhance the sealing effect.
It significantly improves the sealing effect between the bearing and the end cover, prevents dust intrusion and grease leakage, and protects vulnerable parts from external damage.
Smart Images
Figure CN223662387U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of bearing related products, concretely to an oil injection pump bearing upper end cover sealing device. BACKGROUND
[0002] The bearing cover is the cover of the bearing end face, and its role is to prevent foreign matters such as dust from invading the raceway of the rolling element, to ensure that the lubricating grease only acts on the rolling element and the raceway without overflowing, and to prevent the rolling element retainer and other vulnerable parts from being damaged by external force to a certain extent.
[0003] The existing bearing cover has simple structure, and most bearing covers only simply seal the bearing and the shaft, so that the sealing effect is poor. CONTENT OF THE UTILITY MODEL
[0004] The utility model discloses a kind of oil injection pump bearing upper end cover sealing devices, to solve the problems raised in the above background technology.
[0005] To achieve the above object, the utility model provides the following technical scheme: an oil injection pump bearing upper end cover sealing device, including shell and end cover, the shell is equipped with terminal, the end cover is located at the side of shell, the shell is equipped with with the end cover corresponding embedding groove, the end cover is inserted with multiple locking bolts, the shell is equipped with with the locking bolt corresponding multiple screw grooves, the inner side wall of the end cover is fixedly connected with sealing ring, the shell one end is equipped with with the sealing ring corresponding sealing groove, the shell one end is fixedly connected with sealing ring, the inner side wall of the end cover is equipped with with the sealing ring corresponding clamping groove, the outer side wall of the end cover is fixedly sleeved with sealing sleeve.
[0006] Preferably, the sealing ring and the sealing sleeve are made of rubber.
[0007] Preferably, the diameter of the sealing ring is greater than the inner diameter of the sealing groove.
[0008] Preferably, the locking bolt is sleeved with a silica gel washer.
[0009] Preferably, the multiple locking bolts are equidistantly arranged.
[0010] Compared with the prior art, the utility model has the beneficial effects that:
[0011] The oil injection pump bearing upper end cover sealing device can effectively improve the sealing effect between the end cover and the bearing after installation through the setting of multiple dust-blocking structures. BRIEF DESCRIPTION OF DRAWINGS
[0012] Fig. 1 It is a structure schematic view of the oil injection pump bearing upper end cover sealing device of the utility model;
[0013] Fig. 2 The utility model discloses a sealing groove of a sealing device of an upper end cover of an oil injection pump bearing.
[0014] In the figure: 1, shell, 2, end cover, 3, embedded groove, 4, locking bolt, 5, screw groove, 6, sealing ring, 7, sealing groove, 8, sealing ring, 9, clamping groove, 10, sealing sleeve. DETAILED DESCRIPTION
[0015] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0016] In the description of the utility model, it needs to be explained that the orientation or position relation indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "another end" and the like is the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and is not indicative or suggestive of the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore can not be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and can not be understood as indicative or suggestive of relative importance.
[0017] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through an intermediate medium, and can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0018] Please refer to Figs. 1-2The utility model provides an embodiment: a kind of fuel injection pump bearing upper end cover 2 sealing device, including shell 1 and end cap 2, terminal is equipped in shell 1, end cap 2 is located in the side of shell 1, embedding groove 3 is equipped on shell 1 with end cap 2 corresponding, multiple locking bolts 4 are inserted on end cap 2, multiple screw grooves 5 are equipped on shell 1 with locking bolt 4 corresponding, sealing ring 6 is fixedly connected on the inner side wall of end cap 2, sealing groove 7 is equipped on the one end of shell 1 with sealing ring 6 corresponding, sealing ring 8 is fixedly connected on the one end of shell 1, clamping groove 9 is equipped on the inner side wall of end cap 2 with sealing ring 8 corresponding, sealing sleeve 10 is fixedly sleeved on the outer side wall of end cap 2, specifically, locking bolt 4 can be fixed in embedding groove 3 in the one end of shell 1 with end cap 2, in the process of installation, sealing ring 6 on end cap 2 is extruded into the inside of sealing groove 7 on shell 1, while sealing ring 8 is inserted into the clamping groove 9 on end cap 2, realize single sealing by sealing ring 6, and sealing ring 8 constitutes second dustproof mechanism to realize sealing effect.
[0019] In the embodiment, the material of the sealing ring 6 and the sealing sleeve 10 is rubber; the diameter of the sealing ring 6 is greater than the inner diameter of the sealing groove 7, so that the sealing ring 6 can be tightly attached to the inner wall of the sealing groove 7; a silica gel gasket is sleeved on the locking bolt 4 to increase the sealing effect of the through hole of the locking bolt 4 on the end cap 2; the multiple locking bolts 4 are equidistantly arranged.
[0020] Working principle: the end cap 2 can be fixed in the embedding groove 3 in the one end of the shell 1 by the multiple locking bolts 4, in the process of installation, the sealing ring 6 on the end cap 2 is extruded into the inside of the sealing groove 7 on the shell 1, while the sealing ring 8 is inserted into the clamping groove 9 on the end cap 2, to realize single sealing by the sealing ring 6, and the sealing ring 8 constitutes a second dustproof mechanism to realize sealing effect.
[0021] It is apparent for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.
Claims
1. A sealing device for an upper end cover (2) of an injection pump bearing, comprising a housing (1) and an end cover (2), characterized in that: The housing (1) is provided with terminals. The end cap (2) is located on one side of the housing (1). The housing (1) is provided with an embedded groove (3) corresponding to the end cap (2). Multiple locking bolts (4) are inserted into the end cap (2). Multiple screw grooves (5) corresponding to the locking bolts (4) are provided on the housing (1). A sealing ring (6) is fixedly connected to the inner wall of the end cap (2). A sealing groove (7) corresponding to the sealing ring (6) is provided on one end of the housing (1). A sealing ring (8) is fixedly connected to one end of the housing (1). A slot (9) corresponding to the sealing ring (8) is provided on the inner wall of the end cap (2). A sealing sleeve (10) is fixedly fitted on the outer wall of the end cap (2).
2. The sealing device for the upper end cover (2) of the fuel injection pump bearing according to claim 1, characterized in that: Both the sealing ring (6) and the sealing sleeve (10) are made of rubber.
3. The sealing device for the upper end cover (2) of the fuel injection pump bearing according to claim 1, characterized in that: The diameter of the sealing ring (6) is larger than the inner diameter of the sealing groove (7).
4. The sealing device for the upper end cover (2) of the fuel injection pump bearing according to claim 1, characterized in that: A silicone washer is fitted on the locking bolt (4).
5. A sealing device for the upper end cover (2) of an injection pump bearing according to claim 1, characterized in that: The locking bolts (4) are equidistant from each other.