Strong tooth roller fixed connection structure

Abstract

The utility model discloses a strong tooth roller fixed connection structure which is characterized in that a tooth plate is provided with a concave circumferential positioning groove and an axial positioning hole; the roller sleeve is provided with a circumferential positioning edge protruding outwards and a mounting notch, and the circumferential positioning groove and the circumferential positioning edge are matched in a socket and spigot mode in the radial direction. One end of the connecting piece is inserted into the mounting notch, the other end of the connecting piece penetrates through the axial positioning hole and is connected with a locking body, and the connecting body located in the mounting notch does not rotate relative to the mounting notch. Radial insertion of the toothed plate is achieved through the circumferential positioning protruding edges and the circumferential positioning grooves, the toothed plate and the roller sleeve are fixedly connected through the connecting piece, meanwhile, the axial positioning effect is achieved, and disassembly, assembly and replacement are convenient. In addition, flat keys can be additionally arranged and arranged between the circumferential positioning protruding edges and the circumferential positioning grooves to be used for being installed in a matched mode to achieve accurate axial positioning.

Description

Technical Field

[0001] The utility model belongs to the technical field of crushing, and particularly relates to a strong tooth roll fixed connection structure which is convenient for disassembly and repair. Background Art

[0002] There are many types of tooth plate structures of existing tooth roll crushers, and correspondingly, there are also many types of roll barrel structures, each with its own advantages and disadvantages: some have reliable connections but are difficult to disassemble and assemble; some are easy to disassemble and assemble, but the connections are not very reliable and accidents such as tooth plate detachment are likely to occur; some have reliable connections and are relatively convenient to disassemble and assemble, but the structures are complex or the material utilization rate is low.

[0003] The connection form between the tooth plate and the roll sleeve of the existing tooth roll crusher is an installation form of dovetail groove matching with a wedge block. For example, the tooth roll crusher disclosed in CN201220050233.9. In this structural form, the tooth plate adopts an internal dovetail structure, and the roll barrel adopts an external dovetail structure corresponding to the tooth plate, and is axially inserted and buckled through the internal dovetail of the tooth plate and the corresponding roll barrel structure. This form of structure has the following problems:

[0004] 1. For a long roll, when the middle tooth plate needs to be replaced due to breakage, it is necessary to sequentially remove the tooth plates from one end of the long roll to complete the replacement of the middle tooth plate, and the operation is cumbersome.

[0005] 2. There is a lack of axial positioning. Due to the particularity of the tooth plate, a large axial component force will be borne during crushing. Only by the inclined surface of the wedge block being in contact with and tightened against the dovetail surface of the tooth plate, the overall axial movement will occur, and in severe cases, tooth collision will occur. Summary of the Utility Model

[0006] In order to solve any of the above technical problems, the inventors have obtained the technical solution of the present utility model through practice and summary. The present utility model adopts the following technical solutions:

[0007] A strong tooth roll fixed connection structure, comprising:

[0008] A tooth plate, on which a circumferential positioning groove and an axial positioning hole are arranged in a concave shape;

[0009] A roll sleeve, on which a circumferential positioning rib and an installation notch are arranged in a convex shape, and the circumferential positioning groove and the circumferential positioning rib are adapted to be inserted and mated in the radial direction;

[0010] A connecting piece, one end of which is inserted into the installation notch, the other end passes through the axial positioning hole and is connected with a locking body, and the connecting body located in the installation notch does not rotate relative to the installation notch.

[0011] Preferably, the size of the end of the axial positioning hole far from the roll sleeve is larger than the size of the end close to the roll sleeve.

[0012] Preferably, the depth of the circumferential positioning groove is one-fourth to one-half of the maximum thickness of the tooth plate.

[0013] Preferably, the cross-section of the roller sleeve is a square structure, and four groups of circumferential positioning edges are provided at the middle parts of the four faces of the roller sleeve along the length direction.

[0014] Preferably, four tooth plates are provided, and radial fitting surfaces are provided at both ends of the tooth plates.

[0015] Preferably, the connecting body includes a socket part and an inserting part, and the size of the socket part is larger than that of the inserting part;

[0016] Four groups of installation notches are provided, and each group of installation notches includes two clamping grooves distributed at right angles. Both clamping grooves include an axial socket slot and a sliding socket slot. The width of the axial socket slot is the same along the depth direction, and the minimum width is the same as the size of the socket part. The width of the sliding socket slot includes a slot one and a slot two along the depth direction. The width of the slot one is the same as the size of the inserting part, and the width of the slot two is the same as the size of the socket part;

[0017] There is a common area between the two axial socket slots of each group of installation notches.

[0018] Preferably, an axial positioning member arranged along the width direction is installed between the circumferential positioning edge and the circumferential positioning groove.

[0019] Compared with the prior art, the present utility model has the following beneficial effects:

[0020] The present utility model realizes the radial insertion of the tooth plate by adopting the circumferential positioning convex rib and the circumferential positioning groove, and uses the connecting piece to fixedly connect the tooth plate and the roller sleeve, and at the same time plays the role of axial positioning, which is convenient for disassembly and replacement operations. Secondly, a flat key can be additionally provided and arranged between the circumferential positioning convex rib and the circumferential positioning groove to cooperate with the installation to achieve accurate axial positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a side view after the tooth plate and the roller sleeve of the present utility model are connected.

[0022] Figure 2 is Figure 1 the sectional view at A-A in

[0023] Figure 3 is Figure 1 the enlarged view at B in

[0024] Figure 4 It is the front view after the tooth plate and the roller sleeve of the present utility model are connected.

[0025] Figure 5 It is the structural distribution diagram of slot one and slot two.

[0026] Figure 6 It is a structural distribution diagram provided with an axial positioning member. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0028] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0029] Embodiment 1, as Figures 1 to 3 shown, a strong tooth roller fixed connection structure includes:

[0030] A tooth plate 10, on which an inward concave circumferential positioning groove 11 and an axial positioning hole 12 are provided;

[0031] A roller sleeve 20, on which an outward convex circumferential positioning rib 21 and a mounting notch 22 are provided, and the circumferential positioning groove 11 and the circumferential positioning rib 21 are adapted to be inserted radially;

[0032] A connecting member 30, one end of the connecting member 30 (a standard part bolt) is inserted into the mounting notch 22, the other end passes through the axial positioning hole 12 and is connected with a locking body 31, and the connecting body located in the mounting notch 22 does not rotate relative to the mounting notch 22.

[0033] When in use, first insert one end of the connecting member 30 into the mounting notch 22. After ensuring that there is no relative rotation, insert the tooth plate 10 through the axial positioning hole 12 on the connecting member 30, and insert and fit it radially through the circumferential positioning groove 11 and the circumferential positioning convex rib 21 to realize the installation of the tooth plate, and fix and install the tooth plate 10 through the locking body 31.

[0034] Among them, the size of the end of the axial positioning hole 12 far from the roller sleeve 20 is larger than the size of the end close to the roller sleeve 20 for installing the locking body 31, and the locking body 31 is a combination of a nut and a screw cap that are threadedly connected to the connecting member 30.

[0035] Among them, the depth of the circumferential positioning groove 11 is one-fourth to one-half of the maximum thickness of the tooth plate 10. It ensures the circumferential anti-slip ability and also ensures the structural strength of the tooth plate 10.

[0036] The cross-section of the roll sleeve 20 is a square structure, and four groups of circumferential positioning edges 21 are provided at the middle parts of the four faces of the roll sleeve 20 along the length direction.

[0037] Four tooth plates 10 are provided, and radial fitting surfaces are provided at both ends of the tooth plates 10, which are arranged at 45°. After the 4 tooth plates 10 are installed, the radial fitting surfaces are fitted to form a circumferential ring with the tooth plates 10.

[0038] Embodiment 2, as Figures 1 to 5 shown, the following improvements are made on the basis of the above embodiment:

[0039] The connecting member 30 includes a socket part 301 and an inserting part 302, and the size of the socket part 301 is larger than that of the inserting part 302;

[0040] Four groups of installation notches 22 are provided, and each group of installation notches 22 includes two clamping grooves 221 distributed at right angles. The two clamping grooves 221 both include an axial socket slot 2211 and a sliding socket slot 2212. The width of the axial socket slot 2211 is the same along the depth direction, and the minimum width is the same as the size of the socket part 301. The width of the sliding socket slot 2212 includes a slot one 22121 and a slot two 22122 along the depth direction. The width of the slot one 22121 is the same as the size of the inserting part 302, and the width of the slot two 22122 is the same as the size of the socket part 301;

[0041] There is a common area for the two axial socket slots 2211 of each group of installation notches 22.

[0042] The socket part 301 enters from the axial socket slot 2211 (relative to its own axis direction, that is, the depth direction of the slot) to the bottom and enters the sliding socket slot 2212 along the length direction. Since the width of the slot one 22121 is the same as the size of the inserting part 302 and the width of the slot two 22122 is the same as the size of the socket part 301, the socket part 301 will not rotate relative to the slot two 22122.

[0043] Embodiment 3, as Figure 6 shown, the following improvements are made on the basis of the above embodiment:

[0044] An axial positioning member 40 arranged along the width direction is installed between the circumferential positioning edge 21 and the circumferential positioning groove 11. Counterbores for installing the axial positioning member 40 are provided on both the circumferential positioning edge 21 and the circumferential positioning groove 11. The axial positioning member 40 is a key structure. More accurate axial positioning relative to the connecting member 30 is achieved.

[0045] As mentioned above, it is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. The substitution may be the substitution of partial structures, devices, method steps, or a complete technical solution. Any equivalent substitution or change made according to the technical solution of the present utility model and its inventive concept shall be covered within the protection scope of the present utility model.

Claims

1. A strong tooth roll fixed connection structure, characterized in that Comprising: A toothed plate (10) is provided with a concave circumferential positioning groove (11) and an axial positioning hole (12); A roller sleeve (20) is provided with a convex circumferential positioning rib (21) and a mounting notch (22), and the circumferential positioning groove (11) and the circumferential positioning rib (21) are adapted to be inserted radially; A connecting member (30), one end of the connecting member (30) is inserted into the mounting notch (22), the other end passes through the axial positioning hole (12) and is connected with a locking body (31), and the connecting body located in the mounting notch (22) does not rotate relative to the mounting notch (22).

2. The strong tooth roll fixed connection structure according to claim 1, characterized in that The dimension of the end of the axial positioning hole (12) far from the roller sleeve (20) is larger than the dimension of the end close to the roller sleeve (20).

3. A strong tooth roll fixed connection structure according to claim 1, characterized in that, The depth of the circumferential positioning groove (11) is one-fourth to one-half of the maximum thickness of the toothed plate (10).

4. A strong tooth roll fixed connection structure according to claim 1, characterized in that, The cross-section of the roller sleeve (20) is a square structure, and four groups of circumferential positioning ribs (21) are provided in the middle of the four faces of the roller sleeve (20) along the length direction.

5. The strong tooth roll fixed connection structure according to claim 4, characterized in that, There are four toothed plates (10), and radial fitting surfaces are provided at both ends of the toothed plates (10).

6. The strong tooth roll fixed connection structure according to claim 4, characterized in that, The connecting member (30) includes an insertion portion (301) and an insertion portion (302), and the dimension of the insertion portion (301) is larger than the dimension of the insertion portion (302); There are four groups of mounting notches (22), and each group of mounting notches (22) includes two clamping grooves (221) distributed at right angles. Both clamping grooves (221) include an axial insertion slot (2211) and a sliding insertion slot (2212). The width of the axial insertion slot (2211) is the same in the depth direction, and the minimum width is the same as the size of the insertion portion (301). The width of the sliding insertion slot (2212) includes a slot one (22121) and a slot two (22122) in the depth direction. The width of the slot one (22121) is the same as the size of the insertion portion (302), and the width of the slot two (22122) is the same as the size of the insertion portion (301); There is a common area between the two axial insertion slots (2211) of each group of mounting notches (22).

7. A strong tooth roll fixed connection structure according to claim 1, characterized in that, An axial positioning member (40) arranged in the width direction is installed between the circumferential positioning rib (21) and the circumferential positioning groove (11).

Images