A symmetrical motor frame for a shredder

Abstract

The utility model discloses a kind of symmetry formula motor frame for breaking machine, it is related to breaking machine field, to solve the problem of unsymmetrical motor frame structure, when motor is replaced, it is difficult to operate, affect overall efficiency and equipment stability, including motor board, the motor board is equipped with driving motor, the motor board below is fixedly connected with adjusting block, the adjusting block is fixedly connected with bearing frame on, bearing frame is equipped with two groups of symmetrically distributed mounting holes, two groups of the mounting hole symmetric distribution about the cross section of motor board, bearing frame side is equipped with breaking machine frame, bearing frame is connected with breaking machine frame by fixed hole, advantage lies in: by the symmetric mounting hole of bearing frame two sides, the installation of motor is replaced, improve installation efficiency, guarantee the stability of subsequent equipment.

Description

Technical Field

[0001] This utility model relates to the field of jaw crusher technology, and in particular to a symmetrical motor frame for jaw crushers. Background Technology

[0002] Jaw crushers, as the core equipment for coarse and medium crushing operations, are typically powered by an electric motor via a V-belt or synchronous belt drive system. The motor is mounted and fixed to one side (usually the right side) of the crusher main unit via an independent motor frame. This motor frame not only bears the weight of the motor but also needs to precisely ensure the parallelism and center distance between the motor shaft and the drive pulleys on the crusher main shaft to ensure smooth and efficient transmission.

[0003] In actual mine, aggregate production line, or specific industrial site installation layouts, limited installation space is often encountered due to constraints imposed by basic planning, spatial layout, existing equipment arrangement, or special process requirements. For example, when one side of the crusher main unit (the traditional installation side) is close to a wall, other equipment, or has obstacles, the motor and transmission system may not be able to be arranged in the conventional direction. Therefore, a common on-site solution is to adjust the direction of the entire transmission system, that is, to move the motor, motor frame, and transmission pulleys as a whole to the other side (i.e., the opposite side) of the crusher main unit. To accommodate this adjustment, traditional motor frames are sometimes designed to allow for a 180-degree reversal of their orientation, while simultaneously swapping the flywheel on the original crusher main shaft with the pulley on the motor shaft to achieve a change in transmission direction.

[0004] However, this seemingly flexible contingency plan reveals many inherent flaws in actual operation and maintenance: many traditional motor frames are not perfectly symmetrical in design. Their connection interfaces with the crusher main unit, the layout of reinforcing ribs, and the positions of anchor bolt holes may differ in the left-right or front-back directions. Forcibly reversing the installation direction may result in misaligned connecting plates, misplaced bolt holes, or a mismatch between the motor frame's center of gravity and the supporting structure, requiring additional on-site cutting, drilling, or shims. This compromises the structural integrity and strength, and introduces safety hazards. Utility Model Content

[0005] In view of the above situation and to overcome the defects of the prior art, this utility model provides a symmetrical motor frame for a jaw crusher. This design effectively solves the problem that the asymmetrical structure of the motor frame makes operation difficult when the motors are swapped or replaced, affecting the overall efficiency and equipment stability.

[0006] To achieve the above objectives, the present invention provides the following technical solution: The present invention includes a motor plate on which a drive motor is mounted. An adjusting block is fixedly connected below the motor plate, and a load-bearing frame is fixedly connected to the adjusting block. The load-bearing frame has two sets of symmetrically distributed mounting holes, which are symmetrically distributed about the cross-section of the motor plate. A jaw crusher frame is provided on the side of the load-bearing frame, and the load-bearing frame is connected to the jaw crusher frame through fixing holes.

[0007] Preferably, there are two sets of load-bearing frames, and a fixing groove is provided in the middle of the two sets of load-bearing frames. The fixing groove is fixedly connected to the adjusting block.

[0008] Preferably, the lateral width of the adjusting block is smaller than the lateral width of the motor plate, and the load-bearing frame is provided with a support groove, which abuts against the bottom of the motor plate.

[0009] Preferably, a shock-absorbing pad is fixed on the motor plate, and both the shock-absorbing pad and the motor plate are provided with fixing grooves, in which fixing bolts for fixing the drive motor pass through.

[0010] Preferably, the mounting hole includes a first through hole and a second through hole. A support rod is rotatably mounted on the first through hole and is fixedly connected to the jaw crusher frame. An adjusting screw is rotatably connected in the second through hole. The adjusting screw has a T-shaped structure. The jaw crusher frame is provided with a key-shaped hole through which the adjusting screw passes. Adjusting nuts that are threadedly connected to the screw are provided on both sides of the key-shaped hole.

[0011] Compared with the prior art, the outstanding advantages of this utility model are: The load-bearing frame approved in this application has mounting holes on both sides, and the motor frame adopts a symmetrical design. In actual operation, the drive motors on the motor frame can be quickly swapped, improving replacement efficiency and ensuring the stability of subsequent work. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the connection structure of the load-bearing frame of this utility model.

[0013] Figure 2 This is a schematic diagram of the axial structure of the motor plate of this utility model.

[0014] Figure 3 This is a schematic diagram of the forward connection structure of the motor board of this utility model.

[0015] Figure 4 This is a schematic diagram of the axial structure of the load-bearing frame of this utility model.

[0016] The following are the labels in the diagram: 1. Motor plate; 2. Drive motor; 3. Adjusting block; 4. Support frame; 5. Mounting hole; 501. First through hole; 502. Second through hole; 6. Jaw crusher frame; 7. Fixing groove; 8. Support groove; 9. Shock-absorbing pad; 10. Fixing groove; 11. Support rod; 12. Adjusting screw; 13. Adjusting nut. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see the appendix Figure 1-4 This embodiment describes a symmetrical motor frame for a jaw crusher, comprising a motor plate 1, an adjusting block 3, and a load-bearing frame 4. The motor plate 1 is a horizontally positioned mounting base plate, and its lateral width (i.e., the direction perpendicular to the crusher's main shaft axis) is designed to accommodate the installation dimensions of motors with different power ratings. A shock-absorbing pad 9 is fixedly connected to the upper surface of the motor plate 1. Figure 2 As shown, the shock-absorbing pad 9 is preferably made of high-damping elastic material such as rubber to absorb the vibration of the motor during operation. The motor plate 1 and the shock-absorbing pad 9 are respectively provided with fixing holes for fixing the drive motor 2. The fixing holes are elongated holes, so as to accommodate motors of different specifications for installation and fixing. The fixing bolts pass through these holes to firmly lock the drive motor 2. The setting of the shock-absorbing pad 9 effectively isolates the vibration transmission and protects the load-bearing structure.

[0019] like Figure 2 and Figure 3 As shown, an adjusting block 3 is fixedly connected in the center below the motor plate 1. The horizontal width of the adjusting block 3 is smaller than the horizontal width of the motor plate 1, forming a stepped transition structure. The bottom of the adjusting block 3 is fixedly connected to the load-bearing frame 4.

[0020] In this embodiment, there are two sets of load-bearing frames 4, both of which are U-shaped support frames. Each set of load-bearing frames 4 has a fixing groove 10 on its upper middle surface. The adjusting block 3 fits perfectly into the fixing groove 10 and is fixed with high-strength bolts. In addition, a support groove 8 is provided on the upper inner side of each set of load-bearing frames 4. When the adjusting block 3 is fixed to the load-bearing frame 4, the upper surface of the support groove 8 abuts against the bottom edge of the motor plate 1, providing additional auxiliary support for the motor plate 1 and enhancing its bending resistance.

[0021] like Figure 3As shown, each set of load-bearing frames 4 has two sets of symmetrically distributed mounting holes 5 on both the left and right sides. The arrangement of the two sets of mounting holes 5 is about the longitudinal center cross-section of the motor plate 1. The left and right sides of the motor frame can be installed with the jaw crusher frame 6. The mounting holes 5 used for connection are completely consistent in spatial position, and there is no need to distinguish between left and right parts. Through the symmetrical design of the mounting holes 5, the mounting frame can be installed in a front-to-back manner. Each set of mounting holes 5 includes a first through hole 501 and a second through hole 502.

[0022] The first through hole 501 is typically a circular, smooth hole, through which a support rod 11 passes. One end of the support rod 11 is fixed to the jaw crusher frame 6 by welding. During installation, the load-bearing frame 4 is fitted onto the support rod 11 through the first through hole 501. An adjusting screw 12 is rotatably connected within the second through hole 502. This adjusting screw 12 is designed with a T-shaped structure, with its head located outside the load-bearing frame 4 and its rod portion passing through the second through hole 502. At a corresponding position on the jaw crusher frame 6, there is a long, narrow keyway for the adjusting screw. The rod of 12 can pass through this key-shaped hole. On both sides of the key-shaped hole, i.e. on the inner and outer plates of the jaw crusher frame 6, there is an adjusting nut 13 that is threadedly engaged with the adjusting screw 12. By tightening or loosening these two adjusting nuts 13, the horizontal distance between the load-bearing frame 4 (together with the entire motor frame) and the jaw crusher frame 6 can be finely adjusted, thereby accurately setting the center distance between the motor shaft and the crusher main shaft, ensuring that the tension of the transmission belt is appropriate. After the adjustment is in place, locking the adjusting nuts 13 on both sides can achieve reliable fixation.

[0023] The installation method of this application is as follows: During installation, firstly, based on the site layout, determine the orientation of the motor on the motor frame. Since the load-bearing frame 4 and its mounting holes 5 are completely symmetrical, it is only necessary to determine the corresponding side of the mounting frame and the jaw crusher frame 6. Then, place the two sets of load-bearing frames 4 through their first through holes 501 onto the two support rods 11 that are already fixed on the jaw crusher frame 6. Pass the adjusting screw 12 through the second through hole 502 of the load-bearing frame 4 and the key hole of the jaw crusher frame 6. Then, initially install the adjusting nuts 13 on both sides. By adjusting the adjusting nuts 13 on both sides, push or pull the load-bearing frame 4 to move slightly along the support rods 11, thereby finely adjusting the front and rear positions of each motor frame until the center distance and tension between the pulley of the drive motor 2 and the flywheel on the crusher main shaft reach the optimal level. Finally, tighten all the adjusting nuts 13 and fixing bolts with a torque wrench to complete the installation.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A symmetrical motor frame for a jaw crusher, characterized in that: The device includes a motor plate (1), on which a drive motor (2) is mounted. An adjustment block (3) is fixedly connected below the motor plate (1), and a load-bearing frame (4) is fixedly connected on the adjustment block (3). The load-bearing frame (4) has two sets of symmetrically distributed mounting holes (5). The two sets of mounting holes (5) are symmetrically distributed about the cross-section of the motor plate (1). A jaw crusher frame (6) is provided on the side of the load-bearing frame (4), and the load-bearing frame (4) is connected to the jaw crusher frame (6) through fixing holes.

2. A symmetrical motor frame for a jaw crusher according to claim 1, characterized in that: The load-bearing frame (4) has two sets, and the middle of the two sets of load-bearing frames (4) is provided with a fixing groove (10), which is fixedly connected to the adjusting block (3).

3. A symmetrical motor frame for a jaw crusher according to claim 2, characterized in that: The lateral width of the adjusting block (3) is smaller than the lateral width of the motor plate (1), and the support frame (4) is provided with a support groove (8), which abuts against the bottom of the motor plate (1).

4. A symmetrical motor frame for a jaw crusher according to claim 1, characterized in that: The shock-absorbing pad (9) is fixed on the motor plate (1). Both the shock-absorbing pad (9) and the motor plate (1) are provided with fixing grooves (10). Fixing bolts for fixing the drive motor (2) pass through the fixing grooves (10).

5. A symmetrical motor frame for a jaw crusher according to claim 1, characterized in that: The mounting hole (5) includes a first through hole (501) and a second through hole (502). A support rod (11) is rotatably mounted on the first through hole (501). The support rod (11) is fixedly connected to the jaw crusher frame (6). An adjusting screw (12) is rotatably connected inside the second through hole (502). The adjusting screw (12) has a T-shaped structure. The jaw crusher frame (6) is provided with a key-shaped hole through which the adjusting screw (12) passes. Adjusting nuts (13) that are threadedly connected to the screw are provided on both sides of the key-shaped hole.

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