Crusher base with position-adjustable belt wheel and crusher
Through the modularly designed adjustment mechanism of the crusher base and motor base, the time-consuming and labor-intensive problem of pulley installation and tensioning structure in crushing equipment is solved, and rapid and accurate pulley center distance adjustment and belt tensioning are achieved, which improves the operating efficiency and operation convenience of the equipment.
Patent Information
- Application Number
- CN202422272691.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-09-18
AI Technical Summary
In the existing crushing equipment, the pulley installation and tensioning structures are time-consuming, insufficient space and high maintenance costs. Especially when the crushing equipment is compact, it is difficult to achieve rapid and accurate pulley center distance adjustment and belt tensioning.
The crusher base with a modular design, including the motor base and tensioning mechanism, adjusts the position of the motor base plate through threaded pull rods and nuts, adjusts the front, back, left and right of the motor, and adjusts the tension of the belt through tension plates and threaded pull rods, simplifying the installation and tensioning process of the pulley.
It realizes efficient and stable operation of the crushing host, simplifies the installation and tensioning process of pulleys, reduces manual operation difficulty, reduces maintenance costs, and avoids the problem of insufficient space.
Smart Images

Figure CN223184678U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a crusher base with an adjustable pulley position, belonging to the technical field of crushers. Background Art
[0002] Currently, belt drives are widely used in crushing equipment to operate the motor-driven crusher. During the crushing process, due to the unstable loads borne by the crusher, it is generally not directly connected to the motor. Belts are required to prevent the impact load of the crusher from being transferred to the motor. Belts can also withstand pulsating loads without speed loss.
[0003] In crushing equipment, the use of belt drive requires consideration of the following issues:
[0004] First, when the pulleys are installed, the end faces of the two pulleys have flatness and shape tolerance requirements, which need to be met by adjusting the axial displacement of the two pulleys.
[0005] The second issue is belt installation and tensioning. When installing a belt onto a pulley, the center distance usually needs to be adjusted until the belt fits easily onto the pulley. As the belt stretches over time, the friction between the pulley and the belt decreases, leading to relative slippage, which affects transmission efficiency and increases belt wear. This necessitates designing a tensioning mechanism. However, the layout of the tensioning mechanism must take into account the convenience of on-site operation. Crushing equipment is often compact, and limited adjustment space can cause significant inconvenience and even lead to inadequate tensioning, failing to meet required tensioning requirements.
[0006] To address the above issues, common measures include:
[0007] 1. When installing the pulley, continuously move the pulley axially along the motor output shaft to meet the shape and position tolerance requirements.
[0008] 2. The belt can be tightened and stretched by the tensioning wheel, or the belt can be tightened by moving the drive motor as a whole.
[0009] The above measures have shortcomings:
[0010] 1. Installation is time-consuming and labor-intensive. The crushing equipment's pulley is heavy and difficult to move manually, requiring a lifting device. Furthermore, the standard length of the motor's output shaft may not meet requirements, and the further outward the pulley is installed, the greater the risk of shaft breakage.
[0011] 2. A tensioner can keep the belt constantly taut, reducing the risk of slippage and improving transmission efficiency, but it increases maintenance and manufacturing costs and carries the risk of failure (internal bearing damage). Using a jackscrew or pull rod to move the drive motor is more common and offers reliable construction and low cost, but considerations must be given to tensioning space and ease of on-site operation. Summary of the Invention
[0012] In view of the deficiencies in the prior art, the utility model provides a crusher base that satisfies pulley installation and quick and precise adjustment of pulley center distance, thereby enabling the crushing host to operate continuously, efficiently and stably.
[0013] The utility model is implemented according to the following technical solutions:
[0014] In the first aspect, the utility model provides a crusher base with adjustable pulley position, comprising a main body base, a motor base and at least one tensioning mechanism; the main body base is used to assemble the crushing main body; the motor base comprises a motor base frame and a motor base plate; the motor base frame is assembled with the main body base; the motor base plate is used to assemble the motor, and the motor can move axially on the motor base plate to meet the form and position tolerance requirements of the pulley on the motor shaft; a belt transmission is provided between the motor and the crushing main body, and a tensioning mechanism acts between the motor base plate and the motor base frame, and is used to adjust the position of the motor base plate on the motor base frame and fix the displaced motor base plate on the motor base frame to realize the belt tensioning function.
[0015] In some embodiments, the tensioning mechanism comprises:
[0016] A tensioning plate, fixed on the motor frame, with at least one through hole being provided on the tensioning plate;
[0017] A threaded pull rod, one end of which is hinged on the motor base plate and the other end is passed through the through hole of the tensioning plate. By pushing the threaded pull rod, the motor base plate is driven to slide on the motor base frame, thereby adjusting the distance between the motor base plate and the main base;
[0018] At least two nuts, one of which is located on the threaded pull rod on the inner side of the tensioning plate, and the other nut is located on the threaded pull rod on the outer side of the tensioning plate, and the threaded pull rod is fixed to the tensioning plate by tightening the two nuts.
[0019] In some embodiments, the motor base plate is provided with a pair of ear plates opposite to each other, and each of the two ear plates is provided with a coaxially arranged reamed hole; a sleeve is fixed to the end of the threaded pull rod, and the sleeve is coaxially arranged between the two reamed holes; after the bolt passes through the two reamed holes and the sleeve, the sleeve is limited between the two ear plates by tightening with a nut.
[0020] In some embodiments, the motor base plate is provided with a plurality of motor fixing holes, which are used to fix the motor on the motor base plate after being engaged with fasteners; the motor fixing holes are elongated holes, which are used to adjust the axial position of the motor on the motor base plate.
[0021] In some embodiments, the motor seat frame is provided with at least two parallel and spaced-apart adjustment components, and the motor seat plate is arranged on the two adjustment components; a groove with an upward opening and an inverted T-shaped cross-section is provided on the top plate of the adjustment component, and the groove extends to the end face of the adjustment component, and the motor seat plate is provided with an open groove corresponding to the groove; the screw fixing block is composed of a screw and a slider, and the slider is inserted from the end face opening of the adjustment component, and the screw is inserted into the open groove of the motor seat plate, and the motor seat plate is fixed to the adjustment component after tightening the bolt with a nut.
[0022] In some embodiments, the motor base frame further comprises:
[0023] a base, on which the adjustment assembly is fixed;
[0024] A plurality of mounting plates are installed at intervals on the same side of the base, and the mounting plates are provided with at least one mounting hole used in conjunction with a bolt.
[0025] In some embodiments, the base comprises:
[0026] Three parallel and spaced-apart beams, each beam having a mounting plate mounted on its end;
[0027] Two parallel and spaced longitudinal beams are overlapped on the top surfaces of the three transverse beams;
[0028] bottom plate, fixed between the two longitudinal beams;
[0029] Among them, three adjustment components are overlapped on the two longitudinal beams and fixed together with the bottom plate, and each cross beam corresponds to an adjustment component arranged parallel to it.
[0030] In some embodiments, at least one material removal hole is provided on the bottom plate and the motor base plate; at least one material clearing trough connected to the groove on the adjusting assembly is provided between the side plate and the bottom plate of the adjusting assembly.
[0031] In some embodiments, the outer contour of the main machine base is a square structure, and the main machine base is provided with a material drop chute, a pipe chute connected to the material drop chute, and multiple crushing machine mounting holes; the side of the main machine base is provided with multiple connecting plate assemblies for fitting with bolts to fix it together with the motor base frame.
[0032] In some embodiments, the connecting plate assembly consists of side connecting plates located at both ends and an intermediate connecting plate located between the two side connecting plates; the side connecting plates and the intermediate connecting plate each have at least two vertically connected mounting surfaces, one of which is provided with a mounting hole for fixing it to the motor seat frame through fasteners, and the other mounting surface is provided with a motor seat fastening groove for placing a fastening block with a threaded hole to fasten the bolts.
[0033] In a second aspect, the utility model provides a crusher, comprising a crushing main unit, a motor and the above-mentioned crusher base with adjustable pulley position, wherein the crusher base is used for assembling the crushing main unit and the motor.
[0034] Beneficial effects of the utility model:
[0035] The crusher base adopts a modular design, which is convenient for production and transportation; the motor can move along the motor base plate, and the motor base plate can move along the motor base to realize the front, back, left and right adjustment of the motor to meet the needs of pulley assembly and belt installation and tensioning; the belt tension is adjusted by rotating the nut on the outside of the threaded pull rod, which saves time and effort and the position adjustment is relatively accurate; multiple operating spaces are taken into consideration to prevent insufficient space during on-site operation: the motor is fixed to the motor base plate, and the motor base plate fixing points are all located on the outside, which can avoid space problems caused by the motor volume; the threaded pull rod is located on the outside of the chassis to avoid tensioning space problems; the motor base and the main base are connected by a fastening block, which avoids the problem of difficulty in fastening bolts with a wrench due to the small space. BRIEF DESCRIPTION OF THE DRAWINGS
[0036] The accompanying drawings are part of this utility model and are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be derived from these drawings without inventive effort.
[0037] In the attached figure:
[0038] Figure 1 This is a schematic diagram of a crusher base with adjustable pulley position according to the present invention;
[0039] Figure 2 This is a schematic diagram of the motor base of the utility model;
[0040] Figure 3 This is a schematic diagram of the motor base frame of the present utility model;
[0041] Figure 4 This is a schematic diagram of the motor base plate of the present utility model;
[0042] Figure 5 This is a schematic diagram of the screw fixing block of the utility model;
[0043] Figure 6 This is a schematic diagram of the main base of the utility model.
[0044] Figure identification: 1-motor seat, 2-main engine seat, 10-motor seat frame, 11-motor seat plate, 101-clearing trough 102-blanking hole, 103-blanking hole, 104-threaded pull rod, 105-pipeline groove, 106-motor fixing hole, 107-opening groove, 108-rib plate, 109-crushing main engine mounting hole, 110-motor seat fastening groove, 111-tensioning plate, 112-ear plate, 113-cross beam, 114-longitudinal beam, 115-bottom plate, 116-mounting plate, 117-fastening block, 118-adjustment assembly, 119-groove, 120-screw fixing block, 121-blanking trough, 122-side connecting plate, 123-middle connecting plate.
[0045] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION
[0046] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.
[0047] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.
[0048] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.
[0049] like Figure 1 、 Figure 2As shown, a crusher base with adjustable pulley position includes a main base 2, a motor base 1 and at least one tensioning mechanism; the main base 2 is used to assemble the crushing main body; the motor base 1 includes a motor base frame 10 and a motor base plate 11; the motor base frame 10 is assembled with the main base 2; the motor base plate 11 is used to assemble the motor, and the motor can move axially on the motor base plate 11 to meet the form and position tolerance requirements of the pulley on the motor shaft; a belt transmission is provided between the motor and the crushing main body, and a tensioning mechanism acts between the motor base plate 11 and the motor base frame 10, and is used to adjust the position of the motor base plate 11 on the motor base frame 10 and fix the displaced motor base 11 plate on the motor base frame 10 to realize the belt tensioning function.
[0050] As can be seen from the above, the crusher base adopts a modular design, which is convenient for production and transportation; the motor can move along the motor base plate, and the motor base plate can move along the motor base to achieve front and back, left and right adjustment of the motor to meet the needs of pulley assembly and belt installation and tensioning.
[0051] The above-mentioned tensioning mechanism is further described below.
[0052] like Figure 2 As shown, the tensioning mechanism includes a tensioning plate 111, a threaded pull rod 104 and at least two nuts; the tensioning plate 111 is fixed on the motor frame 10, and at least one through hole is provided on the tensioning plate 111; one end of the threaded pull rod 104 is hinged on the motor base plate 11, and the other end is passed through the through hole of the tensioning plate 111, and the motor base plate 11 is driven to slide on the motor base frame 10 by pushing the threaded pull rod 104, thereby adjusting the distance between the motor base plate 11 and the main body 2; one of the nuts is located on the threaded pull rod 104 on the inner side of the tensioning plate 111, and the other nut is located on the threaded pull rod 104 on the outer side of the tensioning plate 111, and the threaded pull rod 104 is fixed to the tensioning plate 111 by tightening the two nuts.
[0053] It should be noted that a locking nut may also be provided on the threaded pull rod 104 located on the outer side of the tensioning plate 111 .
[0054] The above-mentioned motor base plate is further described below.
[0055] like Figure 4 As shown, a pair of ear plates 112 facing each other are provided on the motor base plate 11, and each of the two ear plates 112 is provided with a coaxially arranged reaming hole; a sleeve is fixed to the end of the threaded pull rod 104, and the sleeve is coaxially arranged between the two reaming holes; after the bolt passes through the two reaming holes and the sleeve, the sleeve is limited between the two ear plates 112 by tightening with a nut.
[0056] Further solutions, such as Figure 4As shown, the motor base plate 11 is provided with a plurality of motor fixing holes 106, which are used to fix the motor on the motor base plate 11 after being matched with fasteners; the motor fixing holes 106 are elongated holes, which are used to adjust the axial position of the motor on the motor base plate 11 to meet the shape and position tolerance requirements of the pulley.
[0057] The above-mentioned motor base frame is further described below.
[0058] like Figure 3 As shown, the motor base frame 10 is provided with at least two parallel and spaced-apart adjustment components 118, and the motor base plate 11 is arranged on the two adjustment components 118; a groove 119 with an upward opening and an inverted T-shaped cross-section is provided on the top plate of the adjustment component 118, and the groove 119 extends to the end face of the adjustment component 118, and an open groove 107 corresponding to the groove 119 is provided on the motor base plate 11; the screw fixing block 120 is composed of a screw and a slider, the slider is inserted from the end face opening of the adjustment component 118, and the screw is inserted into the open groove 107 of the motor base plate 11, and the motor base plate 11 is fixed to the adjustment component 118 after tightening the bolt with a nut.
[0059] It should be noted that if Figure 5 As shown, the screw fixing block includes a screw and a slider welded to it, which can slide along the interior of the adjustment assembly of the motor base frame. The overall length of the screw is greater than the height from the upper plane of the bottom of the adjustment assembly to the upper plane of the motor mounting base. Only when the screw is placed on the bottom plate of the adjustment assembly and still has sufficient length to extend from the upper surface of the motor mounting base can the bolt be aligned with the motor mounting hole and the nut be directly tightened to achieve motor assembly. This structure is mainly based on the limited internal space of the adjustment assembly and the fact that there are only openings at both ends, making it difficult to use tools to fix the bolts and achieve fixed torque. After designing into this shape, when tightening the bolt, the slider interacts with the two side walls. When a person tightens the nut from the outside, a force in the opposite direction is applied from the inside to achieve motor fixation.
[0060] Further solutions, such as Figure 3 As shown, the motor base frame 10 also includes a base and multiple mounting plates 116; the adjustment assembly 118 is fixed to the base; the multiple mounting plates 116 are installed at intervals on the same side of the base, and the mounting plates 116 are provided with at least one mounting hole for use with a bolt.
[0061] Further solutions, such as Figure 3As shown, the base includes three parallel and spaced-apart transverse beams 113, two parallel and spaced-apart longitudinal beams 114 and a bottom plate 115; a mounting plate 116 is installed at the end of each transverse beam 113; two parallel and spaced-apart longitudinal beams 114 are overlapped on the top surfaces of the three transverse beams 113; the bottom plate 115 is fixed between the two longitudinal beams 114; wherein, three adjustment components 118 are overlapped on the two longitudinal beams 114 and fixed to the bottom plate 115, and each transverse beam 113 has an adjustment component 118 arranged parallel thereto above it.
[0062] It should be noted that the tensioning plate 111 is welded to the longitudinal beam 114 , and a plurality of ribs 108 are welded between the tensioning plate 111 and the longitudinal beam 114 to increase the strength of the tensioning plate 111 .
[0063] Further solutions, such as Figure 3 、 Figure 4 As shown, at least one drop hole 102, 103 is provided on the bottom plate 115 and the motor base plate 11 for cleaning the material splashed by the crushing host; at least one cleaning trough 101 connected to the groove 119 on the adjusting component 118 is provided between the side plate of the adjusting component 118 and the bottom plate 115, for cleaning the crushed material in the groove 119 of the adjusting component 118 to prevent blockage from affecting the sliding of the screw fixing block 120.
[0064] The above-mentioned main base is further described below.
[0065] like Figure 6 As shown, the outer contour of the main machine base 2 is a square structure. The main machine base 2 is provided with a blanking chute 121, a pipe groove 105 connected to the blanking chute 121, and a plurality of crushing machine mounting holes 109; the side of the main machine base 2 is provided with a plurality of connecting plate assemblies for fitting with bolts to fix it together with the motor base frame 10.
[0066] In a further solution, the connecting plate assembly consists of side connecting plates 122 located at both ends and an intermediate connecting plate 123 located between the two side connecting plates 122; the side connecting plates 122 and the intermediate connecting plate 123 each have at least two vertically connected mounting surfaces, one of which is provided with a mounting hole for fixing it to the motor seat frame 10 through fasteners, and the other mounting surface is provided with a motor seat fastening groove 110 for placing a fastening block 117 with a threaded hole to fasten the bolts.
[0067] It should be noted that when assembling the motor base 1 and the mainframe 2, the fastening blocks 117 can be placed on the inner side of the connecting plate of the mainframe 2 through the motor base fastening slots 110. A set of bolts can be screwed through the mounting plate 116 and into the threaded holes of the fastening blocks 117. The two bolts are then screwed into the fastening blocks 117 to tighten the bolts and complete the assembly. This structure can avoid the difficulty of using a wrench to tighten the bolts due to the limited space, and is more convenient for on-site personnel to operate.
[0068] Instructions for use: Connect the motor base 1 and the mainframe 2 with the fastening block 117 and bolts. Lift the motor and place it above the motor base plate 11. Adjust to meet the pulley flatness requirements, then bolt the motor to the motor base plate 11. Tighten the outer nuts of the two threaded tie rods 104 to achieve the required belt tension, and finally tighten the screw fixing block 120 to secure the motor base plate 11. To adjust, simply loosen the screw fixing block 120, tighten the outer nuts of the threaded tie rods 104 to achieve the required belt tension, and finally tighten the screw fixing block 120.
[0069] In summary, the crusher base adopts a modular design, which is convenient for production and transportation; the motor can move along the motor base plate, and the motor base plate can move along the motor base to realize the front and back, left and right adjustment of the motor to meet the needs of pulley assembly and belt installation and tensioning; the belt tension is adjusted by rotating the nut on the outside of the threaded pull rod, which saves time and effort, and the position adjustment is relatively accurate; multiple operating spaces are taken into consideration to prevent insufficient space during on-site operation: the motor is fixed to the motor base plate, and the motor base plate fixing points are all located on the outside, which can avoid space problems caused by the motor volume; the threaded pull rod is located on the outside of the chassis to avoid tensioning space problems; the motor base and the main base are connected by a fastening block, which avoids the problem of difficulty in fixing bolts with a wrench due to the small space.
[0070] The crusher provided by the present invention is described below. The crusher described below and the crusher base with adjustable pulley position described above can correspond to each other.
[0071] The utility model provides a crusher, which may include a crusher base with adjustable pulley position as described in any one of the above embodiments, and the crusher base is used for assembling a crushing machine and a motor.
[0072] The beneficial effects achieved by the crusher provided by the present invention are consistent with the beneficial effects achieved by the crusher base with adjustable pulley position provided by the present invention, and will not be described in detail here.
[0073] In the description provided herein, numerous specific details are described. However, it is understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.
[0074] Furthermore, those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, combinations of features from different embodiments are also intended to fall within the scope of protection of the present invention and form different embodiments. For example, in the above embodiments, those skilled in the art will be able to use them in combination based on the known technical solutions and the technical problems to be solved by this application.
[0075] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments using the above-mentioned technical content without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.
Claims
1. A crusher base with adjustable pulley position, characterized in that: include: Mainframe, used for assembling the crushing mainframe; Motor base, including: A motor base frame, assembled with the main engine base; The motor base plate is used to assemble the motor, and the motor can move axially on the motor base plate to meet the shape and position tolerance requirements of the pulley on the motor shaft; the motor and the crushing host are driven by a belt. At least one tensioning mechanism acts between the motor base plate and the motor base frame, and is used to adjust the position of the motor base plate on the motor base frame and fix the displaced motor base plate on the motor base frame to achieve the belt tensioning function.
2. A crusher base with adjustable pulley position according to claim 1, characterized in that: The tensioning mechanism comprises: A tensioning plate, fixed on the motor frame, with at least one through hole being provided on the tensioning plate; A threaded pull rod, one end of which is hinged on the motor base plate and the other end is passed through the through hole of the tensioning plate. By pushing the threaded pull rod, the motor base plate is driven to slide on the motor base frame, thereby adjusting the distance between the motor base plate and the main base; At least two nuts, one of which is located on the threaded pull rod on the inner side of the tensioning plate, and the other nut is located on the threaded pull rod on the outer side of the tensioning plate, and the threaded pull rod is fixed to the tensioning plate by tightening the two nuts.
3. The crusher base with adjustable pulley position according to claim 2, characterized in that: The motor base plate is provided with a pair of ear plates facing each other, and each of the two ear plates is provided with a coaxially arranged reaming hole; A sleeve is fixed to the end of the threaded pull rod, and the sleeve is coaxially arranged between the two reaming holes; After the bolt passes through the two reaming holes and the sleeve, the sleeve is restricted between the two lugs by tightening the nut.
4. The crusher base with adjustable pulley position according to claim 1, characterized in that: The motor base plate is provided with a plurality of motor fixing holes, which are engaged with fasteners to fix the motor on the motor base plate; The motor fixing hole is an elongated hole used for adjusting the axial position of the motor on the motor base plate.
5. The crusher base with adjustable pulley position according to claim 1, characterized in that: The motor base frame is provided with at least two parallel and spaced adjustment assemblies, and the motor base plate is arranged on the two adjustment assemblies; The top plate of the adjustment component is provided with a groove with an upward opening and an inverted T-shaped cross section, the groove extending to the end surface of the adjustment component, and the motor base plate is provided with an open slot corresponding to the groove; The screw fixing block consists of a screw and a slider. The slider is inserted into the end face opening of the adjustment component, and the screw is inserted into the opening groove of the motor base plate. The motor base plate is fixed to the adjustment component after the bolt is tightened by the nut.
6. A crusher base with adjustable pulley position according to claim 5, characterized in that: The motor base frame also includes: a base, on which the adjustment assembly is fixed; A plurality of mounting plates are installed at intervals on the same side of the base, and the mounting plates are provided with at least one mounting hole used in conjunction with a bolt.
7. The crusher base with adjustable pulley position according to claim 6, characterized in that: The base comprises: Three parallel and spaced-apart beams, each beam having a mounting plate mounted on its end; Two parallel and spaced longitudinal beams are overlapped on the top surfaces of the three transverse beams; bottom plate, fixed between the two longitudinal beams; Among them, three adjustment components are overlapped on the two longitudinal beams and fixed together with the bottom plate, and each cross beam corresponds to an adjustment component arranged parallel to it.
8. The crusher base with adjustable pulley position according to claim 7, characterized in that: At least one blanking hole is provided on each of the bottom plate and the motor base plate; at least one clearing trough connected to the groove on the adjusting assembly is provided between the side plate and the bottom plate of the adjusting assembly.
9. The crusher base with adjustable pulley position according to claim 1, characterized in that: The outer contour of the mainframe is a square structure, and the mainframe is provided with a material drop chute, a pipe groove connected to the material drop chute, and a plurality of crushing mainframe mounting holes; The side of the main engine seat is provided with a plurality of connecting plate assemblies for being fixed together with the motor seat frame with bolts.
10. The crusher base with adjustable pulley position according to claim 9, characterized in that: The connecting plate assembly is composed of side connecting plates located at both ends and a middle connecting plate located between the two side connecting plates; The side connecting plate and the middle connecting plate each have at least two vertically connected mounting surfaces, one of which is provided with a mounting hole for fixing it to the motor base frame through fasteners, and the other mounting surface is provided with a motor base fastening groove for placing a fastening block with a threaded hole to fasten the bolts.
11. A crusher, comprising a crushing machine and a motor, characterized in that: It also comprises a crusher base with adjustable pulley position according to any one of claims 1 to 10, wherein the crusher base is used for assembling a crushing machine and a motor.