Rotary table counterweight bolt mounting plate structure and engineering machinery
By welding the rear upright plate and the mounting plate of the turntable body together in the turntable counterweight bolt mounting plate structure and setting coaxial through holes, and welding the threaded seat to it, the problem of thread discontinuity caused by the gap at the splicing point is solved, and the strength and reliability of the threaded connection are improved.
Patent Information
- Application Number
- CN202520736872.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-04-18
AI Technical Summary
The existing turntable counterweight bolt mounting plate is made of two plates welded together, resulting in a gap at the joint, which affects the strength and reliability of the threaded connection.
Design a turntable counterweight bolt mounting plate structure by welding the turntable body rear upright plate and the plate together, with a coaxially arranged through hole in between. A threaded seat passes through the through hole and is welded to the two together. The central area of the threaded seat has an axially extending threaded hole for assembling the counterweight bolt.
It improves the continuity of threaded connections, avoids gaps at the joints, increases the length of threaded connections, and enhances the strength of threaded connections.
Smart Images
Figure CN223854631U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a turntable counterweight bolt mounting plate structure and belongs to the technical field of engineering machinery. BACKGROUND
[0002] The industry benchmark turntable counterweight bolt mounting plate is formed by splicing two plates, and there is a splicing gap between the two plates, which causes the discontinuity of the threads of the bolt mounting hole and seriously affects the strength and reliability of the threaded connection. SUMMARY
[0003] To avoid the discontinuity of the threads caused by the splicing gap and affect the fastening of the counterweight bolt connection, the utility model provides a turntable counterweight bolt mounting plate structure for increasing the length of the threaded connection and improving the strength of the threaded connection.
[0004] The utility model realizes the following technical scheme:
[0005] In the first aspect, the utility model provides a turntable counterweight bolt mounting plate structure, which comprises:
[0006] The turntable main body rear vertical plate and the plate are spliced together, and a through hole coaxially arranged between the two plates is provided.
[0007] The threaded seat is arranged in the coaxially arranged through hole of the turntable main body rear vertical plate and the plate, and the threaded seat is spliced together with the turntable main body rear vertical plate and the plate; the central region of the threaded seat is provided with an axially extending threaded hole, and the threaded hole is used for assembling the counterweight bolt.
[0008] In some embodiments, the threaded seat is a T-shaped cylindrical boss structure as a whole, and the small-end cylinder of the threaded seat is inserted into the coaxially arranged through hole from the turntable main body rear vertical plate to the plate.
[0009] In some embodiments, the small-end cylinder of the threaded seat is welded together with the plate, and the large-end cylinder of the threaded seat is welded together with the turntable main body rear vertical plate.
[0010] In some embodiments, the large-end cylinder of the threaded seat is provided with a circle of chamfer at the outer edge of the side surface facing the turntable main body rear vertical plate, and the side surface of the turntable main body rear vertical plate is spliced together with the threaded seat by circumferential welding at the circle of chamfer.
[0011] In some embodiments, the small-end cylinder of the threaded seat is provided with a circle of chamfer at the outer ring edge of the axial end surface, and the inner ring surface of the plate is spliced together with the threaded seat by circumferential welding at the circle of chamfer.
[0012] In some embodiments, the counterweight bolt is inserted into the threaded hole of the threaded seat from the small end cylinder of the threaded seat towards the large end cylinder of the threaded seat; the inner ring edge of the axial end face of the small end cylinder of the threaded seat is provided with a chamfer for widening the entrance width of the threaded hole.
[0013] In some embodiments, the large end cylinder of the threaded seat is provided with a chamfer at the outer edge of the side surface away from the rear vertical plate of the turntable body; and / or, the connecting position of the small end cylinder and the large end cylinder of the threaded seat is provided with a chamfer.
[0014] In some embodiments, the rear vertical plate of the turntable body is provided with a plurality of different size patches, and each patch is provided with at least one through hole.
[0015] In some embodiments, the upper half area of the rear vertical plate of the turntable body is provided with an elongated patch on each side of the length direction at the same horizontal line; the lower half area of the rear vertical plate of the turntable body is provided with a short patch on each side of the length direction at the same horizontal line; the length direction of the elongated patch is provided with a through hole on each side, and the center area of the short patch is provided with a through hole, and the through hole on the short patch is aligned with the outer through hole on the elongated patch; the center of the four through holes on the two elongated patches and the center of the two through holes on the two short patches form a rectangle.
[0016] In the second aspect, the utility model provides an engineering machinery, including counterweight and above-mentioned turntable counterweight bolt mounting plate structure;The counterweight is fixed together with the turntable counterweight bolt mounting plate structure through a plurality of counterweight bolts.
[0017] The utility model has the advantages of:
[0018] The utility model provides a turntable counterweight bolt mounting plate structure, improves the coherence of the thread, avoids the joint gap, increases the thread connection length, and improves the strength of the thread connection. BRIEF DESCRIPTION OF DRAWINGS
[0019] The accompanying drawings are part of the utility model and serve to provide a further understanding of the utility model, the illustrative embodiments of the utility model and the description thereof serve to explain the utility model, but do not constitute improper limitation on the utility model. Obviously, the drawings in the following description are only some embodiments, and other drawings can be obtained according to these drawings without creative labor for ordinary skilled in the art.
[0020] In the drawings:
[0021] Figure 1 It is the front view of the turntable counterweight bolt mounting plate structure of the utility model;
[0022] Figure 2 The rear view of the turntable counterweight bolt mounting plate structure of the utility model;
[0023] Figure 3 The side sectional view of the turntable counterweight bolt mounting plate structure of the utility model;
[0024] Figure 4 The local enlarged view of the utility model;
[0025] Figure 5 The perspective view of the threaded seat of the utility model;
[0026] Figure 6 The sectional view of the threaded seat of the utility model;
[0027] Figure 7 The connection schematic view of the turntable counterweight bolt mounting plate structure and the counterweight body of the utility model.
[0028] The drawing label: 1 - paste board, 2 - turntable main body rear vertical plate, 3 - threaded seat, 31 - chamfer, 32 - chamfer, 33 - chamfer, 34 - round angle, 35 - threaded hole, 36 - chamfer, 100 - counterweight body, 200 - counterweight bolt, 300 - turntable counterweight bolt mounting plate structure.
[0029] It needs to be explained that these drawings and textual descriptions do not aim to limit the concept range of the utility model in any way, but illustrate the concept of the utility model for the person skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model more clear, the technical scheme in the embodiments will be clearly and completely described below by combining the drawings in the embodiments of the utility model, and the following embodiments are used to illustrate the utility model, but not to limit the range of the utility model.
[0031] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer" and the like is the orientation or position relationship based on the orientation or position relationship 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 cannot be understood as a limitation on the utility model.
[0032] In the description of the utility model, it is necessary to explain that, unless another explicit provision and limitation, the term "installation", "connection", "connection" should be broad sense understanding, for example, 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 the intermediate medium.
[0033] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 Indicated, to avoid the gap caused by the thread of the point and the incoherence, affect the fastening of the counterweight bolt connection, the utility model provides a rotary table counterweight bolt mounting plate structure, including rotary table main body rear vertical plate 2, pasting plate 1 and threaded seat 3;Rotary table main body rear vertical plate 2 and pasting plate 1 are welded together, and the coaxial through hole is arranged between the two;Threaded seat 3 is arranged in the coaxial through hole of rotary table main body rear vertical plate 2 and pasting plate 1, and threaded seat 3 is welded together with rotary table main body rear vertical plate 2 and pasting plate 1;The central region of threaded seat 3 is provided with axially extending threaded hole 35, and the threaded hole 35 is used for assembling counterweight bolt 200, improves the coherence of thread, avoids the gap of the point and increases the length of threaded connection, improves the strength of threaded connection.
[0034] The specific structure of the threaded seat is further described below.
[0035] As Figure 5 , Figure 6 Indicated, threaded seat 3 is T-shaped cylindrical boss structure as a whole, and the small end cylindrical of threaded seat 3 is inserted in the coaxial through hole from rotary table main body rear vertical plate 2 to pasting plate 1.
[0036] Further scheme, as Figure 4 Indicated, the small end cylindrical of threaded seat 3 is welded together with pasting plate 1, and the large end cylindrical of threaded seat 3 is welded together with rotary table main body rear vertical plate 2.
[0037] The specific connection mode of the large end cylindrical and the line segment cylindrical of the threaded seat is further described below.
[0038] As Figure 4 , Figure 5 , Figure 6As shown, the outer edge of the large end cylinder of the threaded seat 3 facing the side surface of the rear vertical plate 2 of the rotary table body is provided with a chamfer 31, and the side surface of the rear vertical plate 2 of the rotary table body is welded to the threaded seat 3 at the chamfer 31. The outer edge of the axial end surface of the small end cylinder of the threaded seat 3 is provided with a chamfer 32, and the inner circumferential surface of the backing plate 1 is welded to the threaded seat 3 at the chamfer 32.
[0039] The specific connection mode of the counterweight bolt is further described below.
[0040] As shown in Figure 7 , the counterweight bolt 200 is inserted into the threaded hole 35 of the threaded seat 3 from the small end cylinder of the threaded seat 3 to the large end cylinder of the threaded seat 3.
[0041] Further, as shown in Figure 5 , Figure 6 , the inner edge of the axial end surface of the small end cylinder of the threaded seat 3 is provided with a chamfer 33, which is used to widen the entrance width of the threaded hole 35 to avoid interference of the counterweight bolt 200 when it is inserted into the threaded hole 35 of the threaded seat 3, thereby damaging the threads.
[0042] The specific structure of the threaded seat is further described below.
[0043] As shown in Figure 5 , Figure 6 , the large end cylinder of the threaded seat 3 is provided with a chamfer 36 away from the outer edge of the side surface of the rear vertical plate 2 of the rotary table body to avoid stress concentration; the connection position of the small end cylinder and the large end cylinder of the threaded seat 3 is provided with a chamfer 34 to avoid stress concentration and interference of the welded structure.
[0044] The connection mode of the rear vertical plate of the rotary table body and the backing plate is further described below.
[0045] As shown in Figure 1 , Figure 2 , Figure 3 , the rear vertical plate 2 of the rotary table body is provided with multiple backing plates 1 of different sizes, and each backing plate 1 is provided with at least one through hole.
[0046] Further, the upper half region of the rear vertical plate 2 of the rotary table body is provided with a long-shaped backing plate on each side in the length direction and located on the same horizontal line; the lower half region of the rear vertical plate 2 of the rotary table body is provided with a short-shaped backing plate on each side in the length direction and located on the same horizontal line; each long-shaped backing plate is provided with a through hole on each side in the length direction, and the center region of each short-shaped backing plate is provided with a through hole, and the through hole on the short-shaped backing plate is aligned with the outer through hole on the long-shaped backing plate; the connection line between the centers of the four through holes on the two long-shaped backing plates and the centers of the two through holes on the two short-shaped backing plates forms a rectangle.
[0047] It should be noted that the above gives a preferred embodiment of the connection mode of the rear vertical plate of the rotary table main body and the pasting plate. Of course, in actual use, it is not limited to the above connection mode, and different sizes and different numbers of pasting plates and the number of threaded seats installed on each pasting plate can be designed according to actual needs.
[0048] In summary, the utility model provides a rotary table counterweight bolt mounting plate structure, improves the coherence of the thread, avoids the joint gap, increases the thread connection length, and improves the strength of the thread connection.
[0049] The engineering machinery provided by the utility model is described below, and the engineering machinery described below can be correspondingly referred to the rotary table counterweight bolt mounting plate structure described above.
[0050] As shown in the figure, the utility model provides an engineering machinery, which comprises a counterweight body 100 and the above-mentioned rotary table counterweight bolt mounting plate structure 300;The counterweight body 100 is fixed together with the rotary table counterweight bolt mounting plate structure 300 through a plurality of counterweight bolts 200. Figure 7 The beneficial effects achieved by the engineering machinery provided by the utility model are consistent with the beneficial effects achieved by the rotary table counterweight bolt mounting plate structure provided by the utility model, and therefore will not be described here.
[0051] It should be noted that the above engineering machinery can be an excavator.
[0052] In the specification provided herein, a large number of specific details are described. However, it can be understood that the embodiments of the utility model can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail in order not to obscure the understanding of the specification.
[0053] In addition, those skilled in the art can understand that although some embodiments described herein include certain features contained in other embodiments but not other features, combinations of features of different embodiments also mean within the protection scope of the utility model and form different embodiments. For example, in the above embodiments, those skilled in the art can use in a combined manner according to the known technical solutions and the technical problems to be solved by the present application.
[0054]
[0055] The above merely describes preferred embodiments of the present application and is not intended to limit the present application in any form. Although the present application has been disclosed with preferred embodiments, it is not intended to limit the present application. Any skilled person in the art can make minor changes or modifications to the above-mentioned technical content without departing from the technical solution of the present application, and equivalent embodiments with equivalent changes are equivalent. Any simple modification, equivalent change and modification of the above embodiments made according to the technical essence of the present application still belong to the scope of the present application.
Claims
1. A turntable counterweight bolt mounting plate structure, characterized by, The application relates to a turntable counterweight bolt mounting plate structure. The application comprises: a turntable body rear vertical plate and a plate, which are welded together, and a coaxial through hole arranged between the two plates; a threaded seat arranged in the coaxial through hole of the turntable body rear vertical plate and the plate, and the threaded seat is welded together with the turntable body rear vertical plate and the plate; the central region of the threaded seat is provided with an axially extending threaded hole, which is used for assembling a counterweight bolt.
2. The turntable counterweight bolt mounting plate structure according to claim 1, wherein: the threaded seat is a T-shaped cylindrical boss structure, and the small-end cylinder of the threaded seat is inserted into the coaxial through hole from the turntable body rear vertical plate to the plate.
3. The turntable counterweight bolt mounting plate structure according to claim 2, wherein: the small-end cylinder of the threaded seat is welded together with the plate, and the large-end cylinder of the threaded seat is welded together with the turntable body rear vertical plate.
4. The turntable counterweight bolt mounting plate structure according to claim 3, wherein: the large-end cylinder of the threaded seat is provided with a circle of chamfer at the outer edge of the side surface of the turntable body rear vertical plate, and the circle of chamfer is circumferentially welded together with the side surface of the turntable body rear vertical plate.
5. The turntable counterweight bolt mounting plate structure according to claim 3, wherein: the small-end cylinder of the threaded seat is provided with a circle of chamfer at the outer ring edge of the axial end surface, and the circle of chamfer is circumferentially welded together with the inner circumferential surface of the plate.
6. The turntable counterweight bolt mounting plate structure according to claim 2, wherein: the counterweight bolt is inserted into the threaded hole of the threaded seat from the small-end cylinder to the large-end cylinder of the threaded seat; the inner ring edge of the axial end surface of the small-end cylinder of the threaded seat is provided with a circle of chamfer, which is used for widening the entrance width of the threaded hole.
7. The turntable counterweight bolt mounting plate structure according to claim 2, wherein: the large-end cylinder of the threaded seat is provided with a circle of chamfer at the outer edge of the side surface of the turntable body rear vertical plate away from the plate; and / or the connection position of the small-end cylinder and the large-end cylinder of the threaded seat is provided with a circle of chamfer.
8. The turntable counterweight bolt mounting plate structure according to claim 1, wherein: the turntable body rear vertical plate is provided with a plurality of plates of different sizes, and each plate is arranged with at least one through hole.
9. The turntable counterweight bolt mounting plate structure according to claim 8, wherein: the upper half region of the turntable body rear vertical plate is provided with an elongated plate on each side in the length direction at the same horizontal line; and the lower half region of the turntable body rear vertical plate is provided with a short plate on each side in the length direction at the same horizontal line; each of the two sides in the length direction of the elongated plate is provided with a through hole, the central region of the short plate is provided with a through hole, and the through hole of the short plate is aligned with the outer through hole of the elongated plate; and the connection line between the centers of the four through holes of the two elongated plates and the centers of the two through holes of the two short plates forms a rectangle.
10. An engineering machine, comprising: The turntable counterweight bolt mounting plate structure of any one of claims 1 to 9; the counterweight is fixed with the turntable counterweight bolt mounting plate structure through a plurality of counterweight bolts.