Double-row four-point contact ball turntable bearing
By introducing a reinforcing ring and support rod structure into the double-row four-point contact ball slewing bearing, the radial load bearing capacity is enhanced, and the heat dissipation efficiency is improved by tilting guides and heat dissipation holes, thus solving the problems of high temperature and insufficient radial load and extending the service life of the bearing.
Patent Information
- Application Number
- CN202422799780.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-11-18
AI Technical Summary
Existing double-row four-point contact ball slewing bearings have high temperatures after long-term operation, limited heat dissipation efficiency, which affects service life, and insufficient radial load bearing capacity, posing a risk of tooth breakage.
Introducing reinforcing rings, support rods, and connecting blocks into the bearing's external structure enhances its radial load-bearing capacity. Meanwhile, incorporating inclined guides and heat dissipation holes in the internal components improves heat dissipation.
By strengthening the ring and support rod structure, the radial load-bearing capacity of the bearing is improved, the risk of tooth breakage is reduced, the heat dissipation effect is enhanced, and the service life is extended.
Smart Images
Figure CN223708302U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bearing technical field especially relates to double row four point contact ball rotary table bearing. BACKGROUND
[0002] Double row four point contact ball rotary table bearing is a kind of bearing of special structure, mainly used to simultaneously bear the combined action of radial load, axial load and overturning moment. Its structure is composed of upper and lower rows of steel balls and spacer blocks, and the bearing angle of upper and lower circular arc raceways is 90 °, with strong axial force and overturning moment bearing capacity. Double row four point contact ball rotary table bearing is composed of inner ring, outer ring, steel ball and spacer block four parts, steel ball and circular arc raceway four-point contact, thereby realizing the function of simultaneously bearing axial and radial force, this design makes bearing can work stably under various complex working conditions, double row four point contact ball rotary table bearing is widely used in various heavy machinery and equipment, such as tower crane, truck crane, bucket wheel excavator, wheel crane, ship crane, port crane etc., these equipment usually need to bear larger axial and radial load, double row four point contact ball rotary table bearing becomes ideal choice due to its stable structure and strong bearing capacity, double row four point contact ball rotary table bearing has the advantages of strong bearing capacity, can bear larger axial force and overturning moment, and its double row design can make bearing keep stable under various working conditions, but the common double row four point contact ball rotary table bearing on the market, after long time running, its temperature is higher, and the heat dissipation efficiency is limited, which will affect service life, and the radial load bearing capacity of double row four point contact ball rotary table bearing is limited, long time use, there is the probability of tooth collapse. CONTENT OF THE UTILITY MODEL
[0003] The outer structure of the double row four point contact ball rotary table bearing of the present disclosure is improved in strength by the reinforcing ring outside the outer structure during use, and the reinforcing ring is connected with the clamping tooth structure through the support rod structure and the connecting block structure, thereby improving the overall radial load bearing capacity of the outer structure and the clamping tooth structure, improving the strength of the outer structure and the clamping tooth structure, and reducing the risk of tooth collapse.
[0004] The first aspect of the present disclosure provides a double-row four-point contact ball rotary disc bearing, which specifically comprises: an inner component; the outer side of the inner component is provided with a groove, the top end of the inner component is fixed with ring-shaped uniformly arranged guide members through a connecting plate assembly, the bottom of the guide members is provided with an inclined structure, the side edge of the connecting plate assembly is fixed with a side plate assembly, and the outer end of the side plate assembly arranged in an inclined manner is provided with a wedge-shaped structure; an outer component structure; the outer component structure is fitted and installed at the outside of the inner component, and a rolling element is installed between the inner component and the outer component structure; the inner component, the rolling element and the outer component structure form a double-row four-point contact ball rotary disc bearing, the outer side of the outer component structure is fixed with uniformly arranged support rod structures through a reinforcing ring, the support rod structures are in a cylindrical structure and are made of metal, the top end of the support rod structures is fixed with a connecting block structure, and the outer side of the connecting block structure is provided with an inclined structure.
[0005] In at least some embodiments, the inner component is internally provided with ring-shaped uniformly arranged inner grooves, one auxiliary rod assembly is fixed in the inner groove, the outer end of the auxiliary rod assembly made of composite rubber is provided with an arc-shaped structure, the inner component is internally provided with ring-shaped uniformly arranged heat dissipation holes, two connecting plate assemblies are fixed at the top end of the heat dissipation hole, and the connecting plate assemblies are arranged in a ring shape; the top end of the guide member is fixed with a top component, and the side edge of the side plate assembly is provided with an auxiliary groove.
[0006] In at least some embodiments, the outer component structure is provided with uniformly arranged clamping tooth structures, the bottom of the clamping tooth structure is fixedly connected with the top end of the connecting block structure, the outer side of the outer component structure is fixed with a reinforcing ring in a circular ring structure, the inner side of the outer component structure is provided with an inner ring, the inner ring is embedded in the inner side of the groove, the inner ring is internally embedded with rolling elements at the upper and lower sides, the inner side of a circular ring structure of the bottom ring is provided with an inclined structure, the outer side of the bottom ring is fixed with ring-shaped uniformly arranged reinforcing plate structures, and the top end of the wedge-shaped reinforcing plate structure is fixedly connected with the bottom of the outer component structure.
[0007] The double-row four-point contact ball rotary disc bearing has the following beneficial effects:
[0008] When the bearing is installed and used, the inner component drives the connecting plate assembly, the guide member and the side plate assembly to rotate quickly during the running process, when rotating, the side plate assembly is arranged in an inclined manner, so that the wind is guided to flow, the wind passes through the bottom of the guide member, the two sides of the guide member are provided with an inclined structure, the wind is controlled to enter the inner side of the heat dissipation hole, the wind passes through the inner side of the inner component, the heat dissipation effect and the heat dissipation intensity of the inner component are improved, and the service life is improved.
[0009] The outer structure is in use, the reinforcing ring is outside the outer structure to preliminarily improve the strength, and the reinforcing ring is connected with the clamping tooth structure through the support rod structure and the connecting block structure, the radial load bearing capacity of the outer structure and the clamping tooth structure is improved, the strength of the outer structure and the clamping tooth structure is improved, and the risk of tooth collapse is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0010] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings of the embodiments will be briefly introduced below.
[0011] The drawings in the following description only relate to some embodiments of the utility model, and are not limited to the utility model.
[0012] In the drawings:
[0013] Figure 1 The three-dimensional structure schematic diagram of the application is shown;
[0014] Figure 2 The exploded three-dimensional structure schematic diagram of the application is shown;
[0015] Figure 3 The exploded bottom view structure schematic diagram of the application is shown;
[0016] Figure 4 The main body partial section exploded bottom view structure schematic diagram of the application is shown;
[0017] Figure 5 The outer structure partial section three-dimensional structure schematic diagram of the application is shown;
[0018] Figure 6 The outer structure partial section bottom view structure schematic diagram of the application is shown;
[0019] LIST OF REFERENCE NUMERALS
[0020] 1, internal component; 101, inner groove; 102, auxiliary rod assembly; 103, heat dissipation hole; 104, connecting plate assembly; 105, guide; 106, top piece; 107, side plate assembly; 108, auxiliary groove;
[0021] 2, outer structure; 201, clamping tooth structure; 202, reinforcing ring; 203, support rod structure; 204, connecting block structure; 205, inner ring; 206, bottom ring; 207, reinforcing plate structure. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme of the embodiments of the utility model will be described clearly and completely below in combination with the drawings of the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.
[0023] Embodiment one: please refer to Figures 1 to 6 :
[0024] The utility model discloses a double row four point contact ball rotary table bearing, comprising: internal component 1, the outside of internal component 1 is equipped with recess, the top of internal component 1 is fixed with ring uniform arrangement's guide 105 through connecting plate component 104, the bottom both sides of guide 105 are oblique structure, make the wind when passing through guide 105 bottom, control wind convergence flow, make the wind pass through the heat dissipation hole 103 and circulate, improve the heat dissipation effect and heat dissipation intensity to internal component 1, the side of connecting plate component 104 is fixed with side plate component 107, the outer end of oblique setting side plate component 107 is wedge structure, can control external wind directional flow, make the wind into the bottom flow of guide 105, external structure 2, external structure 2 cooperation installs in the outside of internal component 1, and internal component 1 is installed with rolling body between external structure 2, internal component 1, rolling body and external structure 2 form double row four point contact ball rotary table bearing, the outside of external structure 2 is fixed with uniform arrangement's support rod structure 203 through reinforcing ring 202, the support rod structure 203 of cylindrical structure is metal material, the top of support rod structure 203 is fixed with connecting block structure 204, the outside of connecting block structure 204 is oblique structure, support rod structure 203 and connecting block structure 204 are in the bottom support of clamping tooth structure 201, improve the radial load bearing capacity of external structure 2 and clamping tooth structure 201, improve the service life, reduce the risk of tooth collapse.
[0025] In the embodiments of the present disclosure, as Figure 3 And Figure 4As shown, the internal component 1 has annularly arranged inner grooves 101 inside for fixing auxiliary rod components 102. Each inner groove 101 has an auxiliary rod component 102 fixed inside. The auxiliary rod component 102, made of composite rubber, has an arc-shaped outer end, which can generate a strong contact fixing point by means of elasticity and anti-slip effect, thereby improving the connection strength and installation strength and improving the stability of the internal component 1. The internal component 1 has annularly arranged heat dissipation holes 103 through it, allowing heat to be discharged through the heat dissipation holes 103. Two connecting plate components 104 are fixed at the top of each heat dissipation hole 103. The connecting plate components 104 are arranged in a ring and are used to support the guide 105 and the top component 106. The top of the guide 105 is fixed with the top component 106. An auxiliary groove 108 is opened in the middle of the side of the side plate component 107 to allow air to pass through, which facilitates the side plate component 107 to control the air convergence and circulation.
[0026] In this embodiment of the disclosure, such as Figure 5 and Figure 6 As shown, the outer component structure 2 has uniformly arranged toothed structures 201 on its exterior for meshing and transmitting force. The bottom of the toothed structures 201 is fixedly connected to the top of the connecting block structure 204. A circular reinforcing ring 202 is fixed to the exterior of the outer component structure 2, located at the bottom of the outer component structure 2 to improve strength. An inner ring 205 is provided on the inner side of the outer component structure 2. The inner ring 205 is embedded in the groove. Rolling elements are positioned and embedded on the upper and lower sides of the inner ring 205 to allow the outer component structure 2 to rotate smoothly. A bottom ring 206 is fixed to the bottom of the outer component structure 2. The inner side of the circular bottom ring 206 is inclined to improve the strength of the outer component structure 2. A ring-shaped reinforcing plate structure 207 is uniformly arranged on the exterior of the bottom ring 206. The top of the wedge-shaped reinforcing plate structure 207 is fixedly connected to the bottom of the outer component structure 2 to further improve the radial load bearing capacity of the outer component structure 2.
[0027] The working principle of the embodiment is as follows: when the support needs to be used, the internal component 1 and the external structure 2 can be controlled to be installed and used, so that the auxiliary rod assembly 102 is inside the inner groove 101 and in contact with the installation position, the fixing effect of the internal component 1 is improved, the toothed structure 201 is engaged with the external component, then the internal component 1 and the external structure 2 are operated, in the operation process, the reinforcing ring 202, the bottom ring 206 and the reinforcing plate structure 207 are outside the external structure 2, the strength is preliminarily improved, the radial load bearing capacity is improved, the support rod structure 203 and the connecting block structure 204 are supported at the bottom of the toothed structure 201, the strength is improved, the risk of tooth collapse is reduced, the service life is improved, in the process of rapid operation of the internal component 1, the side plate assembly 107 intercepts the wind to flow into the bottom of the guide 105, because the two ends of the bottom of the guide 105 are inclined structures, the wind direction is controlled to flow downward, the wind flows through the heat dissipation holes 103 quickly, and the heat generated by the internal component 1 is taken away, the use and heat dissipation effect are improved.
[0028] In this paper, the following points need attention:
[0029] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.
[0030] 2. In the case of no conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other to obtain new embodiments.
[0031] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.
Claims
1. A double-row four-point contact ball slewing bearing, characterized in that, include: Internal component (1); the outer side of the internal component (1) is provided with a groove, and the top of the internal component (1) is fixed with a ring of evenly arranged guides (105) through the connecting plate assembly (104). The bottom sides of the guides (105) are inclined structures, and the side of the connecting plate assembly (104) is fixed with a side plate assembly (107). The outer end of the inclined side plate assembly (107) is a wedge structure; external component structure (2); the external component structure (2) is installed on the outside of the internal component (1). Rolling elements are installed between the internal component (1) and the external structure (2). The internal component (1), the rolling elements and the external structure (2) form a double-row four-point contact ball slewing bearing. The external structure (2) is fixed with a uniformly arranged support rod structure (203) through a reinforcing ring (202). The cylindrical support rod structure (203) is made of metal. A connecting block structure (204) is fixed at the top of the support rod structure (203). The outer side of the connecting block structure (204) is an inclined structure.
2. The double-row four-point contact ball swivel bearing according to claim 1, characterized in that, The internal component (1) has an inner groove (101) arranged in a ring and uniformly. An auxiliary rod assembly (102) is fixed inside each inner groove (101). The auxiliary rod assembly (102) made of composite rubber has an arc-shaped structure at its outer end.
3. The double-row four-point contact ball swivel bearing according to claim 2, characterized in that, The internal component (1) has a ring of uniformly arranged heat dissipation holes (103) through it. Each heat dissipation hole (103) has two connecting plate assemblies (104) fixed at its top. The connecting plate assemblies (104) are arranged in a ring.
4. The double-row four-point contact ball swivel bearing according to claim 3, characterized in that, The top of the guide (105) is fixed with a top piece (106), and an auxiliary groove (108) is provided in the middle of the side of the side plate assembly (107).
5. The double-row four-point contact ball swivel bearing according to claim 4, characterized in that, The outer component structure (2) is provided with a uniformly arranged tooth structure (201) on its exterior. The bottom of the tooth structure (201) is fixedly connected to the top of the connecting block structure (204). A reinforcing ring (202) with a circular structure is fixed on the exterior of the outer component structure (2).
6. The double-row four-point contact ball swivel bearing according to claim 5, characterized in that, The outer component structure (2) has an inner ring (205) on its inner side. The inner ring (205) is embedded in the groove. Rolling elements are embedded in the upper and lower sides of the inner ring (205).
7. The double-row four-point contact ball swivel bearing according to claim 6, characterized in that, The bottom of the outer component structure (2) is fixed with a bottom ring (206). The inner side of the bottom ring (206) is inclined. The outer side of the bottom ring (206) is fixed with a ring-shaped and uniformly arranged reinforcing plate structure (207). The top of the wedge-shaped reinforcing plate structure (207) is fixedly connected to the bottom of the outer component structure (2).