Crawler belt type shot blasting machine with crawler belt axial limiting function
By setting a limiting structure in the tracked shot blasting machine, the wear problem caused by axial movement of the track is solved, achieving reliable limiting and convenient replacement of the track, and extending the service life of the track.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO ZHIYE MECHANICAL COMPONENTS CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-06-26
AI Technical Summary
Tracked shot blasting machines are prone to axial movement during operation, which causes friction between the tracks and the machine casing, shortening the service life of the tracks.
A limiting structure is set inside the casing of the tracked shot blasting machine, including components such as a support base, rotating sleeve, support shaft, bearing and bracket. These components axially limit the outer edges of both sides of the vertical section of the track to prevent axial movement of the track.
It effectively avoids friction between the tracks and the machine housing, improving the service life and ease of track replacement.
Smart Images

Figure CN224407296U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of tracked shot blasting machines, and more specifically, to a tracked shot blasting machine with track axial limiting function. Background Technology
[0002] Tracked shot blasting machines utilize a high-speed rotating impeller to propel shot onto the workpiece inside the chamber, effectively cleaning the surface of the workpiece. During operation, the workpiece is supported on a track located inside the machine, and the rotation of the track flips the workpiece, allowing the shot to clean all areas. However, in existing tracked shot blasting machines, the track is prone to axial movement, meaning the edges of the track easily rub against the machine casing, causing wear and shortening its service life. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a tracked shot blasting machine with track axial limiting function, which can prevent the track from moving axially, thereby avoiding friction between the track and the machine housing and causing track wear, thus improving the service life of the track.
[0004] This utility model provides a tracked shot blasting machine with track axial limiting function, including a machine housing and a track rotatably connected to the inner side of the machine housing; the tracked shot blasting machine also includes two limiting structures, which are symmetrically arranged on both sides of the track in the axial direction, and both limiting structures are fixed to the rear inner wall of the machine housing; each limiting structure includes a support seat and a rotating sleeve, both support seats are fixed to the rear inner wall of the machine housing, and both rotating sleeves are rotatably connected to the support seats on the corresponding sides, with the middle part of the two rotating sleeves in the axial direction abutting against the outer edges of both sides of the vertical section of the track.
[0005] By adopting the above-mentioned structure, the rotating sleeves in the two limiting structures can abut against the outer edges of the vertical section of the track on both sides, thereby limiting the track in the axial direction. This prevents the track from moving axially and avoids friction between the track and the housing, which would cause wear on the track and thus improve the service life of the track.
[0006] In one possible implementation, the axis of each rotating sleeve forms a 45-degree angle with the axis of the track. By adopting this structure, the middle part of the rotating sleeve in the axial direction can more reliably abut against the outer edges of both ends of the vertical section, and an inward squeezing force along the axial direction of the track can be applied to both ends of the vertical section, thereby further improving the effect of limiting the track in the axial direction.
[0007] In one possible implementation, each limiting structure further includes a support shaft, which is coaxially inserted into the rotating sleeve. Both ends of the support shaft pass through one end of the support seat and extend out of the support seat, where they are secured with snap rings. The snap rings abut against the outer wall of the support seat. With this structure, the support shaft can reliably support the rotating sleeve under its action, and the snap rings can reliably assemble the support shaft with the support seat and restrict the axial movement of the support shaft relative to the support seat, thus preventing the support shaft from detaching from the support seat.
[0008] In one possible implementation, a bearing is embedded between the rotating sleeve and the support shaft; by adopting this structure, the rotating sleeve can be reliably rotatably connected to the support shaft, and the smoothness of the rotation of the rotating sleeve relative to the support shaft can be improved. In addition, wear between the rotating sleeve and the support shaft can be effectively avoided.
[0009] In one possible implementation, each limiting structure also includes a "V"-shaped bracket, one side of which is fixed to the rear inner wall of the housing, and two support seats are respectively welded and fixed to the other side of the corresponding bracket; by adopting this structure, under the action of the bracket, the support seats can be reliably fixed to the rear inner wall of the housing.
[0010] In one possible implementation, each bracket has two elongated holes spaced vertically on one side, each extending along the axial direction of the track. The bracket and the housing are fastened together by bolts threaded through the elongated holes and connected to the housing. With this structure, the bracket can be reliably fastened to the rear inner wall of the frame by the bolts. When the worn track needs to be replaced, the bolts can be loosened, allowing the bracket, along with the support base and rotating sleeve, to move away from the track. This releases the axial restraint on the track, facilitating track replacement. After track replacement, the bracket is moved towards the track so that the rotating sleeve abuts against the outer edges of the vertical sections of the track. The bolts are then tightened to secure the bracket.
[0011] In one possible implementation, a reinforcing plate is provided between the two sides of each bracket, and each reinforcing plate is welded and fixed to the inner wall of the two sides of the corresponding bracket. By adopting this structure, since each reinforcing plate is welded and fixed to the inner wall of the two sides of the corresponding bracket, the structural strength and deformation resistance of the bracket can be improved, so that the bracket can reliably support the support base and the rotating sleeve. Attached Figure Description
[0012] Figure 1This is a cross-sectional view of the structure after the tracks are connected to the frame.
[0013] Figure 2 This is a cross-sectional view of the track after the outer edges of both ends of the vertical section abut against the two limiting structures.
[0014] Figure 3 for Figure 2 A magnified structural diagram of point A in the middle. Detailed Implementation
[0015] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.
[0016] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.
[0017] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0018] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0019] See Figure 1-3As shown in the figure, this application discloses a tracked shot blasting machine with track axial limiting function, including a housing 1 and a track 2 rotatably connected to the inner side of the housing 1; the tracked shot blasting machine also includes two limiting structures, which are symmetrically arranged on both sides of the track 2 in the axial direction, and both limiting structures are fixed on the rear inner wall of the housing 1; each limiting structure includes a support seat 3 and a rotating sleeve 4, both support seats 3 are fixed on the rear inner wall of the housing 1, and both rotating sleeves 4 are rotatably connected to the support seat 3 on the corresponding side, and the middle part of the two rotating sleeves 4 in the axial direction abuts against the outer edges of the vertical section 21 of the track 2 on both sides respectively.
[0020] Each rotating sleeve 4 has its axis forming a 45-degree angle with the axis of the track 2. By adopting this structure, the middle part of the rotating sleeve in the axial direction can more reliably abut against the outer edges of both ends of the vertical section, and an inward squeezing force can be applied to both ends of the vertical section in the axial direction of the track, thereby further improving the effect of limiting the track in the axial direction.
[0021] Each limiting structure also includes a support shaft 5, which is coaxially inserted into the rotating sleeve 4. Both ends of the support shaft 5 pass through one end of the support seat 3 and extend out of the support seat 3, where they are secured with snap rings 6. The snap rings 6 abut against the outer wall of the support seat 3. With this structure, the support shaft can reliably support the rotating sleeve under the action of the support shaft. Under the action of the snap rings, the support shaft can be reliably assembled with the support seat and the axial movement of the support shaft relative to the support seat can be restricted, thus preventing the support shaft from detaching from the support seat.
[0022] A bearing 7 is embedded between the rotating sleeve 4 and the support shaft 5. With this structure, the rotating sleeve can be reliably connected to the support shaft, and the smoothness of the rotation of the rotating sleeve relative to the support shaft can be improved. In addition, wear between the rotating sleeve and the support shaft can be effectively avoided.
[0023] Each limiting structure also includes a "V"-shaped bracket 8, one side of which is fixed to the rear inner wall of the housing 1, and two support seats 3 are respectively welded and fixed to the other side of the corresponding bracket 8. With this structure, the support seats can be reliably fixed to the rear inner wall of the housing by the bracket under the action of the bracket.
[0024] Each bracket 8 has two elongated holes 81 spaced vertically on one side. Each elongated hole 81 extends along the axial direction of the track 2. The bracket 8 and the housing 1 are fastened together by bolts 9 that pass through the elongated holes 81 and are threaded onto the housing 1. With this structure, the bracket can be reliably fastened to the rear inner wall of the frame by the bolts. When it is necessary to replace the aging track, the bolts can be loosened. At this time, the bracket, together with the support base and the rotating sleeve, can move away from the track. That is, the rotating sleeve can release the axial limiting effect on the track, thus facilitating the track replacement process. After the track is replaced, the bracket is moved toward the track so that the rotating sleeve abuts against the outer edges of both ends of the vertical section of the track. Then the bolts are tightened to secure the bracket.
[0025] A reinforcing plate 82 is provided between the two sides of each bracket 8, and each reinforcing plate 82 is welded and fixed to the inner wall of the two sides of the corresponding bracket 8. By adopting this structure, since each reinforcing plate is welded and fixed to the inner wall of the two sides of the corresponding bracket, the structural strength and deformation resistance of the bracket can be improved, so that the bracket can reliably support the support seat and the rotating sleeve.
[0026] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A tracked shot blasting machine with track axial limiting function, characterized in that: The machine includes a housing (1) and a track (2) rotatably connected to the inner side of the housing (1); characterized in that: the tracked shot blasting machine further includes two limiting structures, the two limiting structures are symmetrically arranged on both sides of the track (2) in the axial direction, and both limiting structures are fixed on the rear inner wall of the housing (1); each limiting structure includes a support seat (3) and a rotating sleeve (4), the two support seats (3) are fixed on the rear inner wall of the housing (1), the two rotating sleeves (4) are rotatably connected to the support seat (3) on the corresponding side, and the middle part of the two rotating sleeves (4) in the axial direction abuts against the outer edges of the vertical section (21) of the track (2) on both sides respectively.
2. The tracked shot blasting machine with track axial limiting function according to claim 1, characterized in that: The axis of each of the rotating sleeves (4) forms a 45-degree angle with the axis of the track (2).
3. The tracked shot blasting machine with track axial limiting function according to claim 1 or 2, characterized in that: Each of the limiting structures also includes a support shaft (5), which is coaxially inserted in the rotating sleeve (4). Both ends of the support shaft (5) pass through one end of the support seat (3) and extend out of the support seat (3) and are fitted with snap rings (6). The snap rings (6) abut against the outer wall of the support seat (3).
4. The tracked shot blasting machine with track axial limiting function according to claim 3, characterized in that: A bearing (7) is fitted between the rotating sleeve (4) and the support shaft (5).
5. The tracked shot blasting machine with track axial limiting function according to claim 1, 2, or 4, characterized in that: Each of the limiting structures also includes a "V"-shaped bracket (8), one side of which is fixed to the rear inner wall of the housing (1), and the two support seats (3) are respectively welded and fixed to the other side of the corresponding bracket (8).
6. The tracked shot blasting machine with track axial limiting function according to claim 5, characterized in that: Each of the brackets (8) has two elongated holes (81) spaced apart vertically on one side. Each elongated hole (81) extends along the axial direction of the track (2). The bracket (8) and the housing (1) are fastened by bolts (9) that pass through the elongated holes (81) and are threaded to the housing (1).
7. The tracked shot blasting machine with track axial limiting function according to claim 6, characterized in that: A reinforcing plate (82) is provided between the two sides of each bracket (8), and each reinforcing plate (82) is welded and fixed to the inner wall of the two sides of the corresponding bracket (8).