CN109395834B - Grid plate adjusting device and sand making machine - Google Patents

Abstract

The application discloses a comb board adjusting device. The grid plate adjusting device comprises a grid plate supporting shaft (1553), a sliding block (1554), a lower jackscrew (1556), a lower jackscrew fixing block (1560) and an adjusting gasket (1555); two ends of the grid plate supporting shaft (1553) are respectively connected with the sliding blocks (1554); the lower jackscrew (1556) is in threaded connection with the lower jackscrew fixing block (1560), the upper end of the lower jackscrew (1556) abuts against the lower end of the sliding block (1554), and the sliding block (1554) is driven to move up and down by rotation of the lower jackscrew (1556); the adjustment spacer (1555) is disposed between the slider (1554) and the lower jack screw block (1560) for supporting the weight of the slider (1554). The grate plate adjusting device can be used for adjusting the up-and-down movement of the lower grate plate of the sand making machine.

Description

Grid plate adjusting device and sand making machine

Technical Field

The application relates to the field of fine material crushing, in particular to a grate plate adjusting device and a sand making machine.

Background

In the building material industry, the sand making machine is an important device for producing artificial sand, and can be used for producing artificial sand and shaping aggregate, and the produced sand has excellent particle shape. As the demand of the market for high-quality machine-made sand is higher and higher, the machine-made sand produced by the traditional equipment is difficult to meet the market demand. Therefore, it is necessary to provide a sand making machine with a better sand making effect. For the lower grate plate of the sand making machine, the lower grate plate is necessary to be adjusted so that the sand making machine can obtain better sand making effect.

Disclosure of Invention

One of the embodiments of the application provides a comb board adjusting device, including comb board back shaft, slider, lower jackscrew fixed block and adjusting gasket. Two ends of the grid plate supporting shaft are respectively connected with the sliding blocks; the lower jackscrew is in threaded connection with the lower jackscrew fixing block, the upper end of the lower jackscrew is propped against the lower end of the sliding block, and the sliding block is driven to move up and down by the rotation of the lower jackscrew; the adjusting gasket is placed between the sliding block and the lower jackscrew fixing block and is used for supporting the gravity of the sliding block.

In some embodiments, the grate plate adjustment device further comprises an upper jackscrew and an upper jackscrew securing block; the upper jackscrew is in threaded connection with the upper jackscrew fixing block, and the lower end of the upper jackscrew is in contact with the upper end of the sliding block.

In some embodiments, the grate plate adjusting device further comprises a sealing plate, wherein the sealing plate is adjacent to the sliding block and sleeved on the grate plate supporting shaft.

In some embodiments, an annular groove is provided in the seal plate, and an O-ring is provided in the annular groove.

In some embodiments, the grate plate adjusting device further comprises a baffle plate for limiting the sliding block, and the baffle plate is fixedly connected with the shell of the sand making machine.

In some embodiments, the grate plate adjusting device further comprises a cover plate for limiting the adjusting gasket, and the cover plate is fixedly connected with the shell of the sand making machine.

One embodiment of the present application provides a method for adjusting a grate plate, including: the lower jackscrew is rotated forward, and drives the sliding block to move upwards, so as to drive the grid plate supporting shaft to move upwards; an adjusting gasket is put in/taken out between the sliding block and the lower jackscrew fixing block; and reversely rotating the lower jackscrew, and downwards moving the sliding block until the adjusting gasket bears the gravity of the sliding block.

One of the embodiments of the present application provides a sand making machine, which includes the grate plate adjusting device.

Drawings

FIG. 1 is a schematic diagram of a front view of a sand making machine according to some embodiments of the present application;

FIG. 2 is a schematic side view of a sand making machine according to some embodiments of the present application;

FIG. 3 is a cross-sectional view of the sand making machine of FIG. 2 taken along the A-A plane according to some embodiments of the present application;

FIG. 4 is a schematic structural view of a sand making machine rotor according to some embodiments of the present application;

FIG. 5 is a cross-sectional view of the sand making machine rotor of FIG. 4 at the B-B plane, according to some embodiments of the present application;

FIG. 6 is a schematic illustration of a reaction frame and compliant adjustment apparatus in accordance with some embodiments of the present application;

FIG. 7 is a schematic illustration of a flexible adjustment device according to some embodiments of the present application;

FIG. 8 is a cross-sectional view of the flexible adjustment device of FIG. 7, taken along the C-C plane, according to some embodiments of the present application;

FIG. 9 is a cross-sectional view of the flexible adjustment device of FIG. 8 taken along the D-D plane, according to some embodiments of the present application;

FIG. 10 is a schematic view of a grate plate adjustment device according to some embodiments of the present application;

FIG. 11 is a cross-sectional view of the grate plate adjustment device of FIG. 10 taken along the plane E-E according to some embodiments of the present application;

FIG. 12 is a detailed schematic view of a grate plate adjustment device according to some embodiments of the present application;

FIG. 13 is a schematic illustration of the construction of an adjustment shim according to some embodiments of the present application;

FIG. 14 is a schematic perspective view of a lower grate plate according to some embodiments of the present application;

FIG. 15 is a schematic side view of a lower grate plate according to some embodiments of the present application;

FIG. 16 is a schematic diagram of a front view of a lower grate plate according to some embodiments of the present application;

FIG. 17 is a cross-sectional view of the lower grate plate of FIG. 16 taken along the plane F-F according to some embodiments of the present application;

FIG. 18 is a schematic top view of a lower grate plate according to some embodiments of the present application;

FIG. 19 is a schematic view of the back side structure of a grate plate according to some embodiments of the present application;

fig. 20 is a schematic diagram of the frontal structure of a grate plate according to some embodiments of the present application.

In the figure, 100 is a sand making machine, 110 is a shell, 120 is a driving device, 130 is a rotor, 140 is a counterattack frame, 150 is a lower grid plate, 160 (comprising 160-1, 160-2 and 160-3) is a flexible adjusting device, 170 is a feed inlet, 180 is a discharge outlet, 190 is a iron discharge outlet, 1305 is a gap, 131 is a first sheave, 132 is a bearing seat, 133 is a gland, 134 is a main shaft, 135 is a hammer head, 136 is a hammer ring, 137 is a spacer sleeve, 138 is a hammer disc, 139 is a flywheel, 1385 is a spacer sleeve fixing shaft, 141 is a counterattack frame fixing shaft, 142 is a counterattack panel, 143 is a counterattack plate, 161 is a distance adjusting component, 162 is an elastic adjusting component, 163 is a spring seat, 1611 is a movable screw rod, 1612 is a sealing ball seat, 1613 is a supporting ball seat, 1614 is a connecting block, 1621 is a fixed screw rod, 1622 is a spring, 1623 is a connecting plate, 1624 is an elastic adjusting nut, 1625 is a screw rod sheath, 155 is a grate plate adjusting device, 1551 is a baffle, 1552 is a cover plate, 1553 is a grate plate supporting shaft, 1554 is a sliding block, 1555 is an adjusting gasket, 1556 is a lower jackscrew, 1557 is an upper jackscrew, 1558 is a sealing plate, 1559 is an O-ring, 1560 is a lower jackscrew fixing block, 1561 is an upper jackscrew fixing block, 151 is a grate plate support, 152 is a grate plate, 153 is a fixing bolt, 1511 is a grate plate support first component, 1512 is a grate plate support second component, 1521 is a locating bolt hole, 1522 is a grate slot, and 1523 is a locating clamping groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

On the contrary, the application is intended to cover any alternatives, modifications, equivalents, and variations that may be included within the spirit and scope of the application as defined by the appended claims. Further, in the following detailed description of the present application, specific details are set forth in order to provide a more thorough understanding of the present application. The present application will be fully understood by those skilled in the art without a description of these details.

The embodiment of the application mainly relates to a fine material crushing device. In particular to a sand making machine, a sand making machine rotor applied to the sand making machine, a flexible adjusting device, a grid plate adjusting device and a lower grid plate of the sand making machine. The sand making machine can be suitable for various scene applications. For example, the sand making machine can be used for matching a large-scale sand production line. For another example, the sand making machine can be used for medium crushing and fine crushing of hard and brittle materials such as sand stone, rock, abrasive, refractory materials, cement clinker, quartz stone, iron ore, concrete aggregate and the like. The application of the method is not limited to the application scene of the sand making machine.

Fig. 1 is a schematic diagram of a front view of a sand making machine according to some embodiments of the present application. Fig. 2 is a schematic side view of a sand making machine according to some embodiments of the present application. FIG. 3 is a cross-sectional view of the sand making machine of FIG. 2 taken along the A-A plane according to some embodiments of the present application. As shown in fig. 1-3, the sand making machine 100 may include a driving apparatus 120, a housing 110, a rotor 130, a reaction frame 140, and a lower grate plate 150. In some embodiments, the sand making machine 100 may further include a flexible adjustment device 160 (160-1, 160-2, 160-3 as shown in FIG. 3), a feed port 170, a discharge port 180, and a discharge port 190.

The housing 110 is used to support other components of the sand making machine 100 (e.g., the rotor 130). The body of the housing 110 may be welded from a steel plate. In some embodiments, protective liners may be mounted to the sides of the housing 110 to protect the housing 110 body structure from wear. The rotor 130 is rotatably connected to the housing 110, and the rotor 130 can rotate around its own axis under the support of the housing 110. Specifically, the rotor 130 may be rotatably coupled to the housing 110 via a bearing housing. In some embodiments, the rotor 130 may have mounted thereon structure (e.g., hammer head and/or hammer ring, etc.) for crushing, shaping material. Specifically, the rotor 130 may include a hammer head and a hammer ring disposed in combination thereon. In some alternative embodiments, the rotor 130 may be of any reasonable construction known to those skilled in the art. For more details on the rotor 130, see fig. 4-5 and the associated description.

The driving device 120 is in transmission connection with the rotor 130 and is used for driving the rotor 130 to rotate. In some embodiments, the drive device 120 may include a motor and a motor mount. The motor may drive the rotation of the rotor 130 by means of a belt transmission. Specifically, the motor may drive the rotor 130 to rotate by a triangle belt, a flat belt, a circular belt, a toothed belt, a synchronous belt, or the like. In some alternative embodiments, the drive device 120 may also be a combination of one or more of an internal combustion engine (e.g., a gasoline engine, an oil-producing machine, etc.), a steam engine, etc. In some embodiments, the drive connection between the drive device 120 and the rotor 130 may also include a combination of one or more of gear drive, chain drive, worm drive, and the like.

The reaction frame 140 is arc-shaped and is disposed above the rotor 130. Specifically, the impact frame 140 may have an involute shape. In some embodiments, the impact bracket 140 may include an impact panel 142 and an impact plate 143 in an involute shape arrangement. The impact plates 143 may be arranged in rows in the involute direction of the impact panel 142 and form a tooth-like structure. Such an arrangement may enhance the crushing effect compared to a reaction plate of non-toothed structure. In some embodiments, the position of the reaction frame 140 may be adjusted by a flexible adjustment device 160 (e.g., 160-1). For more details on the impact bracket 140 and the flexible adjustment means, see fig. 6-9 and their associated description.

The lower grate plate 150 is arc-shaped and is disposed under the rotor 130. The lower grate plate 150 is provided with grate slits. The lower grate plate 150 can be used to control the discharge force and ensure the crushing and shaping of the material by the rotor 130. For more details on the lower grate plate 150, see FIGS. 14-20 and the associated description. In some embodiments, the curvature of the arcuate surface of the lower grate plate 150 can be uniform or substantially uniform with the curvature of the outer rotor ring. In some embodiments, for better crushing and shaping, the gaps formed between the lower grate plate 150 and the outer ring of the rotor 130 may be the same or substantially the same, so that the effect (e.g., force) of the material is substantially uniform throughout the space between the lower grate plate 150 and the rotor 130. Specifically, the difference between the gaps 1305 formed between the lower grate plate 150 and the outer ring of the rotor 130 may be less than a first threshold (e.g., 1cm, 5cm, 10cm, etc.). In some embodiments, the gap between the two ends of the lower grid plate 150 and the rotor outer race can be adjusted by flexible adjustment means 160 (e.g., 160-2, 160-3). In some embodiments, the up and down movement of the lower grate 150 can be regulated by the grate plate regulating device 155. The difference between gaps 1305 formed between the lower grate plate 150 and the outer ring of the rotor 130 can be made smaller than a first threshold by the cooperation of the flexible adjustment means 160 and the grate plate adjustment means 155. Compared with the existing lower grid plate which cannot be adjusted, the adjustable lower grid plate disclosed by the embodiment of the application can better ensure the consistency of the gap formed between the lower grid plate 150 and the outer ring of the rotor 130, so that the crushing and shaping effects are better. In addition, the discharging force can be better controlled by adjusting the gap formed between the lower grate plate 150 and the outer ring of the rotor 130. More details regarding the flexible adjustment means 160 and the grate plate adjustment means 155 can be seen in fig. 6-13 and their associated description.

In some embodiments, the sand making machine 100 may further include a feed port 170, a discharge port 180, and/or a tap hole 190. Wherein the feed port 170 may be disposed above the housing 110, and materials (e.g., ore, aggregate, etc.) may be poured into the housing 110 of the sand making machine through the feed port 170. Specifically, in the embodiment shown in FIG. 3, the feed port 170 may be disposed above the opening formed by the rotor 130 and the impact bracket 140. In some embodiments, the discharge outlet 180 may be disposed below the housing 110. After the machine-made sand leaks through the grate slits on the lower grate plate 150, it can be further discharged out of the sand machine 100 through the discharge port 180. In some embodiments, the iron notch 190 may be used to remove some foreign matter such as non-breakable iron pieces to protect components in the sand making machine. In some embodiments, an iron receiving assembly may also be provided below the iron drain 190. Specifically, the iron receiving assembly may include an iron receiving box that may be used to receive foreign matter such as non-breakable iron nuggets discharged from the iron discharge port 190.

It should be noted that the above description of the sand making machine is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application. Appropriate changes and modifications may be made by those skilled in the art on the basis of the embodiments herein without departing from the scope of the present application. For example, the sand making machine 100 may also include a hydraulic system that may be used to invert the rear housing of the housing 110 to facilitate servicing the impact frame 140 and the rotor 130. As another example, a sand making machine may include a sand making machine rotor, a flexible adjustment device, a grate plate adjustment device, and any combination of one or more of the features disclosed in embodiments of the present application.

Fig. 4 is a schematic structural view of a sand making machine rotor according to some embodiments of the present application. FIG. 5 is a cross-sectional view of the sand making machine rotor of FIG. 4 at the B-B plane, according to some embodiments of the present application. As shown in fig. 4-5, the sand making machine rotor 130 may include a main shaft 134, a hammer disk 138, a hammer head 135, and a hammer ring 136. In this embodiment, the rotor 130 may further include a primary sheave 131, a bearing housing 132, a gland 133, a spacer 137, and a flywheel 139.

In some embodiments, at least two hammer disks 138 are secured to spindle 134 and are capable of coaxial rotation with spindle 134. For example, in the embodiment shown in fig. 4, 7 hammer disks 138 are mounted on spindle 134 in equidistant juxtaposition. In some alternative embodiments, the number of hammer disks 138 may be greater or lesser. In some embodiments, the hammer disks 138 may be keyed (e.g., flat keyed, splined, etc.) to the spindle 134. In some embodiments, the hammer disks 138 may be coupled to the spindle 134 in a pin connection, an expansion connection, an interference fit connection, or the like.

In some embodiments, at least two hammer heads 135 and at least two hammer rings 136 may be provided between each two hammer disks 138. For example, in the embodiment shown in fig. 4-5, 8 hammerheads and 8 hammer rings are provided between each two hammer disks 138. In some alternative embodiments, the number of hammerheads and hammer rings between two hammer disks 138 may be greater or lesser (e.g., 6 each, 4 each, 10 each, etc.). In some embodiments, the number of hammerheads and hammer rings between two hammer disks 138 may be equal or unequal. In some embodiments, the hammer head 135 and the hammer ring 136 may be uniformly spaced apart in the circumferential direction. In some embodiments, the hammer head 135 and the hammer ring 136 may be spaced apart along the main axis direction. Conventional breaker (e.g., sand making) rotors typically have only a single structure of striking device, e.g., hammer breaker rotors have only hammer heads or hammer rings, impact breaker rotors have only fixed plate hammers; the crushing function of the rotor is single, and the crushing and shaping functions of materials are difficult to be well considered. According to the embodiment of the application, the hammer heads 135 and the hammer rings 136 are arranged at intervals in the main shaft direction and the circumferential direction, so that the crushing effect on materials can be guaranteed, and the shaping effect on the materials can be achieved. In alternative embodiments, the hammer head 135 and the hammer ring 136 may be arranged in other ways. For example, the hammer heads 135 and the hammer rings 136 may be uniformly arranged at intervals only in the circumferential direction, and may be arbitrarily arranged in the main shaft direction. For another example, the hammer heads 135 and the hammer rings 136 may be arranged at intervals only in the main shaft direction, but at intervals every other in the circumferential direction. In some embodiments, the outer rotor ring is the outer edge of the track formed by the hammer head and/or the hammer ring as the rotor rotates. In the embodiment of the present application, the maximum distance of the hammer bit 135 from the axis of the spindle 134 is equal to the distance of the hammer ring 136 from the axis of the spindle 134.

In some embodiments, at least two sets of hammerheads 135 and hammer rings 136 spaced apart along the main axis may be provided between each two hammer disks 138. For example, in the embodiment shown in fig. 4-5, 4 sets of hammerheads 135 and hammer rings 136 spaced apart along the main axis, each set comprising one hammer head and one hammer ring, may be provided between each two hammer disks 138. In some alternative embodiments, each set may also contain more hammerheads and/or more hammer rings (e.g., 2 hammerheads 1 hammer ring, or 2 hammerheads 2 hammer rings, etc.).

In the embodiment shown in fig. 4-5, the hammer head 135 may be a solid metal object, which may be shaped like a fan. The outward facing surface of the hammer bit 135 may be a cylindrical surface centered on the spindle axis. In some embodiments, the front end portion of the hammer head (i.e., the face that is in contact with the material) may be subjected to an increased contact surface and/or weighting process. The hammer head 135 may be used to crush material, which may be effective to crush the material. Hammer ring 136 may be made of a wear resistant alloy steel material containing manganese and chromium components. The hammer ring 136 may have a circular cross-sectional shape. In embodiments of the present application, the width of the hammer head 135 may be consistent with the width of the hammer ring 136.

In some embodiments, the hammer head 135 and hammer ring 136 may be disposed between two hammer disks 138 by a spacer sleeve 137. Specifically, in the embodiment shown in fig. 4-5, at least two (e.g., 4) spacer sleeves 137 may be secured between each two hammer disks 138. The spacer 137 may include two fixed arms, each of which may have a fixed shaft. One end of the fixed shaft may be fixedly connected with the hammer head 135, and the other end of the fixed shaft may be sleeved with the hammer ring 136. In some embodiments, a plurality of (e.g., 4) spacer fixing shafts 1385 may be disposed on the hammer disk 138 at equal intervals in the circumferential direction, and the spacer 137 may be fixedly sleeved on the spacer fixing shafts 1385. Specifically, spacer stationary shaft 1385 may extend through and be fixedly attached to a plurality of hammer disks 138. The securing arms may be fixedly attached (e.g., keyed, etc.) to the spacer securing shafts 1385. The fixed shaft may be fixedly attached to the fixed arm (e.g., keyed, welded, integrally formed, etc.). Through the setting of spacer sleeve, can get off the position fixing of tup and hammer ring to effectual tup and the hammer ring keep apart, in order to avoid the collision. In some alternative embodiments, both ends of the fixed shaft may be used to secure the hammer head 135; or both ends of the fixed shaft may be used to house the hammer ring 136. In some alternative embodiments, more than two hammerheads and/or hammer rings may be provided on the stationary shaft. In alternative embodiments, the hammer head 135 and the hammer ring 136 may be disposed between the two hammer disks 138 in other ways. For example, a plurality of (e.g., 8) fixed shafts may be provided directly on the hammer disk 138 at equal intervals in the circumferential direction, and the hammer head may be fixed to the fixed shaft, and the hammer ring may be fitted over the fixed shaft.

In some embodiments, the inner diameter of the hammer ring 136 may be greater than the diameter of the stationary shaft in which it is mounted. For example, the inner diameter of the hammer ring 136 may be 1.3-2.5 times (e.g., 1.3 times, 1.5 times, 2 times, 2.5 times, etc.) the diameter of its stationary shaft. The inner diameter of the hammer ring is larger than the diameter of the fixed shaft, so that the hammer ring can float. When the hammer ring encounters broken stone with too hard hardness or an object which cannot be crushed, the hammer ring can be retracted, so that the loss of materials to parts such as the hammer ring can be reduced. In addition, the hammer ring can form the effect of rolling compaction to the material, and then can make the shape of mechanism sand more round. In embodiments of the present application, the force to which the material is subjected to the hammer ring may include the weight of the hammer ring itself and the centrifugal force to which the rotor to which the hammer ring is subjected rotates. In some alternative embodiments, the hammer ring may also be fixedly attached to the stationary shaft.

In some embodiments, the rotor 130 may further include two bearing blocks 132 and a first sheave 131. As shown in fig. 4, the bearing inner rings of the two bearing seats 132 may be respectively sleeved at two ends of the main shaft 134; the bodies of the two bearing blocks 132 may be used to secure with the sand making machine housing 110. The gland 133 may be used to seal the bearing 132 and ensure axial positioning of the bearing. The first sheave 131 may be fixedly connected to the first end of the main shaft 134, for driving the main shaft 134 to rotate. Specifically, the driving apparatus 120 may drive the rotor 130 to rotate through the first sheave 131. In the embodiment shown in fig. 4, the rotor 130 may further include a flywheel 139, the flywheel 139 being fixedly coupled to the second end of the main shaft 134. The flywheel 139 acts as an energy storage element to ensure its smoothness during the operation of the rotor. In some alternative embodiments, the second end of the main shaft 134 may be fixedly connected to a second sheave, and the first sheave 131 and the second sheave may jointly drive the main shaft 134 to rotate, thereby achieving a double-sided drive of the rotor 130.

The hammer head of the rotor of the sand making machine is mainly used for crushing materials; the floating hammer ring is mainly used for shaping materials and can reduce excessive crushing. Through the combined design of the hammer head and the hammer ring, the crushing effect on materials is guaranteed, and the shaping effect on the materials is also considered. Practice proves that the machine-made sand produced by the crushing equipment adopting the rotor has excellent grain shape, more reasonable grading and lower powder content.

Fig. 6 is a schematic structural view of a strike plate and a flexible adjustment device according to some embodiments of the present application. As shown in fig. 6, the reaction frame 140 has an arc shape and is disposed above the rotor 130. Specifically, the impact frame 140 may have an involute shape. In some embodiments, the impact bracket 140 may include an impact panel 142 and an impact plate 143 in an involute shape arrangement. The impact plates 143 may be arranged in rows in the involute direction of the impact panel 142 and form a tooth-like structure to enhance crushing effect. Specifically, bolts may be used to fix the impact panel 142 to the impact frame 140, and the impact plate 143 to the impact panel 142. As shown in fig. 6, the reaction frame 140 may further include a reaction frame fixing shaft 141, and the reaction frame fixing shaft 141 is fixedly coupled with the reaction frame 140. By means of which the rotating shaft 141 is fixed, the reaction frame 140 can be rotatably arranged on the sander housing 110. In some embodiments, the position of the reaction frame 140 may be adjusted by a flexible adjustment device 160 (e.g., 160-1). For example, as shown in fig. 6, the flexible adjusting device 160 can adjust the impact frame 140 to rotate around the impact frame fixing shaft 141, so that the impact plate 143 is at a proper angle, and the impact plate effectively collides with the material. In some embodiments, the impact shelf 140 may be adjusted to place the impact shelf 140 in place based on factors such as the size of the material, the desired degree of treatment of the material, and the like.

Fig. 7-9 disclose a flexible adjustment device that may be used to adjust equipment to be adjusted (e.g., counterweights 140, lower grate plates 150, etc.). Fig. 7 is a schematic structural view of a flexible adjustment device according to some embodiments of the present application. FIG. 8 is a cross-sectional view of the flexible adjustment device of FIG. 7, taken along the C-C plane, according to some embodiments of the present application. Fig. 9 is a cross-sectional view of the flexible adjustment device of fig. 8 taken along the D-D plane, according to some embodiments of the present application. As shown in fig. 7-9, the flexible adjustment device 160 may include a distance adjustment assembly 161, an elastic adjustment assembly 162, and a spring seat 163.

In some embodiments, distance adjustment assembly 161 may include a movable lead screw 1611, a sealing ball seat 1612, a support ball seat 1613, and a distance adjustment nut; the sealing ball seat 1612, the supporting ball seat 1613, the spring seat 163, and the distance adjusting nut may be sequentially sleeved on the movable screw rod 1611. In some embodiments, the end of the movable screw 1611 that is close to the sealing ball seat 1612 and far from the distance adjusting nut is a connection end, and a connection block 1614 may be disposed on the connection end, where the connection block 1614 may be used to connect (e.g., fixedly connect, or contact) with a device to be adjusted (e.g., the counterattack frame 140, the lower grate plate 150, etc.). The distance adjustment assembly 161 may be used to adjust the position of the device to be adjusted. For example, by rotating the distance adjustment nut, the expansion and contraction of the movable screw 1611 may be controlled, thereby adjusting the position of the device to be adjusted. In embodiments of the present application, the sealing ball seat 1612 may be used for housing sealing. For example, in the sand making machine 100, the sealed ball seat 1612 may prevent material from entering the flexible adjustment device 160 from the housing 110. In some embodiments, the sealing ball seat 1612 may be a floating ball seat that is sleeved on the movable screw 1611 and can slide on the movable screw 1611. The support ball mount 1613 may be used for support positioning. In particular, the support ball seat 1613 may be used to support the movable screw 1611 and maintain the position of the movable screw 1611. In some embodiments, the support ball socket 1613 may include internal threads that mate with the movable screw 1611. The movable screw rod 1611 may be a screw rod, and is in threaded connection with the support ball seat 1613 and the distance adjusting nut. When the distance adjusting component 161 is used for adjusting, the relative position of the movable screw rod 1611 and the supporting ball seat 1613 can be adjusted according to the ideal position of the equipment to be adjusted, and then the distance adjusting nut is rotated to lock the movable screw rod 1611 and the spring seat 163 as well as the supporting ball seat 1613.

In some embodiments, the spring force adjustment assembly 162 may include a fixed lead screw 1621, a spring 1622, a connecting plate 1623, and a spring force adjustment nut 1624; the spring seat 163, the spring 1622, the connection plate 1623, and the elastic adjusting nut 1624 are sequentially sleeved on the fixing screw rod 1621. The spring force adjustment nut 1624 may be used to adjust the distance between the spring seat 163 and the connection plate 1623. Specifically, one end of the spring 1622 may be secured to or in contact with the spring seat 163. The other end of the spring 1622 may be secured to or in contact with the connection plate 1623. The fixing screw 1621 may be a screw, which is screwed with the elastic adjusting nut 1624. The spring force adjustment assembly 162 may be used to adjust the spring force applied by the flexible adjustment device 160 to the equipment to be adjusted. Specifically, by rotating the elastic force adjustment nut 1624, the distance between the spring seat 163 and the connection plate 1623 may be adjusted, thereby adjusting the elastic force exerted by the spring 1622 on the spring seat 163 (i.e., the elastic force exerted by the flexible adjustment device 160 on the equipment to be adjusted). In some embodiments, the end of the fixing screw 1621 that is proximate to the spring seat 163 and distal to the spring adjustment nut 1624 may be coupled to a securing device (not shown) that is secured to the sand making machine housing 110. When the elastic force adjusting component 162 is adjusted, since the distance adjusting component 161 (such as the sealing ball seat 1612) is abutted against the sand making machine shell 110, when the elastic force adjusting nut 1624 is rotated in the forward direction, the elastic force adjusting nut 1624 can apply pressure to the connecting plate 1623, so as to reduce the distance between the connecting plate 1623 and the spring seat 163. After the adjustment of the elastic adjusting nut 1624 is completed, since one end of the fixing screw 1621 is relatively fixed with the housing 110 (i.e., there is no relative movement), the connecting plate 1623 is also relatively fixed with the housing 110; thus, when the movable screw 1611 is subjected to pressure by the device to be adjusted, it may transmit the pressure to the spring seat 163, and thus to the spring 1622, and the spring 1622 may act as a buffer (e.g., overload retraction). In some embodiments, a screw jacket 1625 may be provided on the end of the fixed screw 1621 proximate the spring adjustment nut 1624 and distal from the spring seat 163 to provide protection for the fixed screw 1621 and the spring adjustment nut 1624.

In some embodiments, the flexible adjustment device 160 may include multiple sets of distance adjustment assemblies 161, the multiple sets of distance adjustment assemblies 161 being evenly arranged in a horizontal direction along the spring seat 163; at least one set of spring force adjustment members 162 may be provided between each two sets of distance adjustment members 161. Specifically, two groups of elastic force adjusting components 162 may be disposed between every two groups of distance adjusting components 161 at equal intervals. For example, in the embodiment shown in fig. 8, the flexible adjustment device 160 includes 3 sets of distance adjustment members 161, with two sets of spring force adjustment members 162 equidistant between each two sets of distance adjustment members 161. By providing a combined cross arrangement of distance adjustment assembly 161 and spring force adjustment assembly 162, the stress throughout flexible adjustment mechanism 160 may be more balanced, thereby providing for better adjustment of the device to be adjusted.

In some embodiments, as shown in FIG. 3, the sand making machine 100 may include 3 sets of flexible adjustment devices 160 (i.e., 160-1, 160-2, and 160-3 in FIG. 3). Wherein the flexible adjustment device 160-1 may be used to adjust the position of the impact bracket 140 in the sand making machine 100. In addition, since the flexible adjusting device 160-1 has a flexible spring retraction structure, the flexible adjusting device 160-1 can buffer the impact frame 140 when the impact frame 140 is impacted by the material, thereby protecting the impact frame 140. Flexible adjustment 160-2 and/or flexible adjustment 160-3 may be used to adjust a gap 1305 between lower grate plate 150 and the outer ring of rotor 130 in sand making machine 100. For example, the two sets of flexible adjustment devices 160-2 and 160-3 may be used to adjust the gap 1305 between the two ends of the lower grate plate 150 and the outer ring of the rotor 130, respectively. In addition, since the flexible adjusting device 160-1 has a flexible spring retraction structure, when the material which is difficult to crush is encountered in the sand making process, the flexible adjusting device can buffer the lower grate plate 150, thereby protecting the lower grate plate. In some embodiments, the spring force (or spring force) of the flexible adjustment device 160 may be adjusted according to the stiffness, strength of the material. Specifically, the elastic force applied by the flexible adjusting device 160 to the apparatus to be adjusted can be adjusted by rotating the elastic force adjusting nut 1624 to adjust the distance between the spring seat 163 and the connecting plate 1623.

The flexible adjustment device 160 disclosed herein may provide benefits including, but not limited to: (1) the adjusting device is simple and convenient to operate; (2) The sealing requirement between the flexible adjusting device and the shell is effectively ensured; (3) enabling a greater range of tuning functions; (4) being able to form a buffer for the device to be conditioned. It should be noted that, the advantages that may be generated by different embodiments may be different, and in different embodiments, the advantages that may be generated may be any one or a combination of several of the above, or any other possible advantages that may be obtained.

Fig. 10-13 disclose a grate plate adjustment mechanism that enables up and down adjustment of the lower grate plate 150. Fig. 10 is a schematic view of a grate plate adjustment device according to some embodiments of the present application. FIG. 11 is a cross-sectional view of the grate plate adjustment device of FIG. 10 taken along the plane E-E according to some embodiments of the present application. Fig. 12 is a detailed structural schematic diagram of a grate plate adjustment device according to some embodiments of the present application. Fig. 13 is a schematic view of the structure of an adjustment shim according to some embodiments of the present application.

As shown in fig. 10-13, the grate plate adjustment device 155 can include a grate plate support shaft 1553, a slider 1554, a lower jackscrew 1556, a lower jackscrew securing block 1560, and an adjustment washer 1555. Two ends of the grid plate supporting shaft 1553 can be respectively connected with the sliding blocks 1554, and the up-and-down movement of the sliding blocks 1554 can drive the up-and-down movement of the grid plate supporting shaft 1533, so as to drive the up-and-down movement of the lower grid plate 150. The lower jackscrew 1556 may be threadably coupled to a lower jackscrew securing block 1560, and the lower jackscrew securing block 1560 may be fixedly coupled to the housing 110 of the sand making machine to provide support to the lower jackscrew 1556. The upper end of the lower jackscrew 1556 may abut against the lower end of the slider 1554, and rotation of the lower jackscrew 1556 may drive the slider 1554 to move up and down. In the embodiments of the present application, the lower jackscrew 1556 is a threaded rod that can be rotated by hand or by an instrument. In some alternative embodiments, the lower jackscrew 1556 may also be an motorized lead screw or the like. In alternative embodiments, the lower jack 1556 may be replaced by other adjustment mechanisms, such as, for example, hydraulic jacking devices may be used to adjust the slide 1554. The hydraulic jacking device is utilized for adjustment, so that the adjustment operation is simpler and more convenient, and the process is more stable; and can make the regulation at grid plate back shaft 1553 both ends more synchronous.

In some embodiments, an adjustment spacer 1555 may be placed between the slider 1554 and the lower jack screw block 1560 for supporting the weight of the slider 1554 (also including the weight of the lower grate plate 150 and the grate plate support shaft 1553). Specifically, the adjustment pad may be a U-shaped pad (as shown in fig. 13). In some embodiments, the tuning shims may be metal shims.

In some embodiments, the grate plate adjustment device 155 can also include upper jackscrews 1557 and upper jackscrew blocks 1561. Specifically, the upper jackscrew 1557 may be a threaded rod, and is screwed with the upper jackscrew fixing block 1561, and the upper jackscrew fixing block 1561 may be fixedly connected with the housing 110 of the sand making machine, so as to provide support for the upper jackscrew 1557. The lower end of the upper jack screw 1557 may contact the upper end of the slider 1554. In actual operation, because the sand making machine 100 has a large force during operation, the upper jackscrews 1557 and the upper jackscrew fixing blocks 1561 can effectively reduce the shake of the grate adjusting device 155 (such as the sliding blocks 1554).

In some embodiments, the grate plate adjusting device 155 may further comprise a sealing plate 1558, wherein the sealing plate 1558 may be adjacent to the sliding block 1554 and sleeved on the grate plate supporting shaft 1553. The seal plate 1558 may be used to prevent machine sand from leaking from the housing 110 into the slide 1554, thereby preventing the slide 1554 from jamming or seizing during sliding. In some embodiments, an annular groove may also be provided in the seal plate 1558 and an O-ring 1559 may be provided in the annular groove. O-ring 1559 may be made of a rubber material. Through the setting of O type circle, can further promote sealing effect of closing plate 1558.

In some embodiments, the grate plate adjustment 155 can also include a shield 1551 for limiting the slide 1554, the shield 1551 can be secured to the housing 110 of the sand making machine 100. The shutter 1551 may be used to prevent the slider 1554 from being removed from the support shaft 1553. In particular, the shield 1551 may be secured to the housing 110 in a variety of ways, such as by threading, clamping, etc. In some embodiments, the grate plate adjustment device 155 can further include a cover plate 1552 for limiting the adjustment spacers 1555, and the cover plate 1552 can be fixedly connected with the housing 110 of the sand making machine 100. Cover plate 1552 may be used to compress adjustment gasket 1555. Specifically, the cover 1552 may be secured to the housing 110 in a variety of ways, such as by threading, clamping, etc.

The grate plate adjusting means 155 may be used to adjust the lower grate plate 150 of the sand making machine 100 up and down. The specific adjustment process can be as follows: (1) The lower jackscrew 1556 is rotated in the forward direction, the lower jackscrew 1556 drives the sliding block 1554 to move upwards, and further drives the grid plate supporting shaft 1553 to move upwards; (2) An adjustment spacer 1555 is inserted/removed between the slider 1554 and the lower jack mount 1560; (3) The lower jack 1556 is rotated in the opposite direction and the slider 1554 is moved downward until the adjustment washer 1555 bears the weight of the slider 1554. Specifically, when the lower grate plate 150 is lifted, an adjusting spacer 1555 can be added between the sliding block 1554 and the lower jackscrew fixing block 1560; when the lower grate plate 150 is lowered, the adjustment spacers 1555 can be reduced between the slide 1554 and the lower jack screw block 1560.

Possible benefits of the grate plate adjustment device 155 disclosed herein include, but are not limited to: (1) The upper and lower adjustment of the lower grate plate is realized, so that the upper arc-shaped surface of the lower grate plate is concentric or basically concentric with the outer cylindrical surface of the rotor, and the crushing and shaping effects of the sand making machine are further ensured; (2) The leakage of materials/machine-made sand from the adjusting device is effectively prevented; (3) the adjustment operation is simple and convenient; and (4) the regulating effect is stable. It should be noted that, the advantages that may be generated by different embodiments may be different, and in different embodiments, the advantages that may be generated may be any one or a combination of several of the above, or any other possible advantages that may be obtained.

Fig. 14-20 disclose a lower grate plate of a sand making machine. FIG. 14 is a schematic perspective view of a lower grate plate according to some embodiments of the present application; FIG. 15 is a schematic side view of a lower grate plate according to some embodiments of the present application; FIG. 16 is a schematic diagram of a front view of a lower grate plate according to some embodiments of the present application; FIG. 17 is a cross-sectional view of the lower grate plate of FIG. 16 taken along the plane F-F according to some embodiments of the present application; FIG. 18 is a schematic top view of a lower grate plate according to some embodiments of the present application; FIG. 19 is a schematic view of the back side structure of a grate plate according to some embodiments of the present application; fig. 20 is a schematic diagram of the frontal structure of a grate plate according to some embodiments of the present application.

As shown in fig. 14 to 20, the lower grate plate 150 may include a grate plate bracket 151, a grate plate 152, and a fixing bolt 153. The grate plate 152 can be provided with a positioning clamping groove 1523 matched with the grate plate bracket 151. The back of the grate plate 152 may be provided with positioning bolt holes 1521, and the fixing bolts 153 may pass through the positioning bolt holes 1521 to fix the grate plate 152 to the grate plate bracket 151.

In some embodiments, as shown in fig. 19-20, the surface of the grate plate 152 may be a curved rectangular structure, and the four corners of the grate plate 152 may be provided with the positioning slots 1523. In some embodiments, the grate plate 152 may have other structural shapes, for example, the grate plate 152 may have a curved triangle, pentagon, hexagon, circle, ellipse, or the like. In some embodiments, the positioning slots of the grate plate 152 can be arranged in other ways. For example, positioning slots may be provided on opposite sides of the curved rectangular structure of the grate plate 152. For another example, a positioning slot may be provided in the middle of the side of the grate plate 152.

In some embodiments, as shown in FIGS. 19-20, the grate plate 152 may be provided with elongated grate slots 1522. Machine-made sand smaller than the grate slit 1522 may leak out of the grate slit 1522. Specifically, the grate slits 1522 may be provided in various sizes and structures. For example, grate slots 1522 may be arranged laterally or longitudinally on grate plate 152. For another example, the grate slots 1522 may be arranged in a single row, a double row, a multiple row, or the like on the grate plate. In some embodiments, the openings of the grate slots 1522 on the front side of the grate plate 152 may be smaller than the openings thereof on the back side of the grate plate 152 to prevent material from getting stuck in the grate slots 1522. In some alternative embodiments, the grate slits 1522 may also be other shaped structures. For example, the grate slits 1522 may have a circular, square, arc-shaped, etc. structure. In some embodiments, different grate plates 152 may be provided with different gauges of grate slots 1522 (e.g., different grate slot widths), so that in practice, the appropriate grate plate may be selected according to the specifications of sand to be produced.

In some embodiments, 4 locating bolt holes 1521 may be provided on the back of the grate plate 152. Specifically, the 4 locating bolt holes 1521 may be arranged symmetrically in pairs (as shown in fig. 19). In some embodiments, the number of locating bolt holes 1521 on the back of the grate plate 152 can be greater or lesser. For example, the back of the grate plate 152 can be provided with 2 symmetrical locating bolt holes. For another example, the back of the grate plate 152 can be provided with 6 positioning bolt holes (i.e. 3 on one side) which are arranged symmetrically in pairs. In some embodiments, the locating bolt holes 1521 may be provided on any reasonably shaped boss. For example, the shape of the bumps may be triangular, rectangular, semicircular, or the shape shown in fig. 19-20, etc.

In some embodiments, the positioning bolt holes 1521 corresponding to two adjacent grate plates 152 can be fixed by using the same fixing bolt 153. Specifically, for two adjacent grate plates, the fixing bolt 153 can sequentially pass through the positioning bolt hole of the first grate plate, the fixing hole on the grate plate frame and the positioning bolt hole of the second grate plate, so that the two adjacent grate plates are fixed. Through above-mentioned fixed mode, can effectively reduce fixing bolt's quantity, and then can practice thrift the cost. For the grate 152 near the end of the grate frame 151, the grate 152 may be fixed to the end of the grate frame 151 by means of fixing bolts 153 through positioning bolt holes 1521 near the end.

In some embodiments, the grate support 151 can include a grate support first member 1511 and a grate support second member 1512. In the embodiment shown in fig. 15, the grate support first member 1511 and the grate support second member 1512 are rotatably sleeved on the grate support shaft 1553. By dividing the grate plate holder 151 into two parts, it is possible to more conveniently adjust the respective gaps 1305 formed between the lower grate plate 150 and the outer ring of the rotor 130. In some alternative embodiments, the grate plate support 151 can also be split into three parts. For example, the grid plate support can be split into a left part, a middle part and a right part, and respectively sleeved on the two grid plate support shafts.

In some embodiments, the grate support first member 1511 and the grate support second member 1512 can each be coupled to a set of flexible adjustment means 160. The flexible adjustment device 160 can adjust the positions of the first part 1511 of the grid plate support and the second part 1512 of the grid plate support relative to the grid plate support shaft 1553, so as to adjust the gap between the two ends of the lower grid plate and the outer ring of the rotor 130. In some embodiments, the lower grate plate of the sand making machine may further include a grate plate adjustment device 155 for adjusting the up and down movement of the lower grate plate 150. By the combined action of the two sets of flexible adjusting devices 160 and the grid plate adjusting device 155, concentricity of the arc-shaped surface of the grid plate and the outer cylindrical surface of the rotor can be effectively ensured, so that the difference value between gaps 1305 formed between the lower grid plate 150 and the outer ring of the rotor 130 can be smaller than a first threshold value.

The possible beneficial effects of the lower grate plate of the sand making machine disclosed by the application include but are not limited to: (1) machine-made sand with more reasonable grading can be produced; (2) reducing wear of the fixing bolt; (3) reducing the number of fixing bolts; and (4) the disassembly, the replacement and the maintenance are convenient. It should be noted that, the advantages that may be generated by different embodiments may be different, and in different embodiments, the advantages that may be generated may be any one or a combination of several of the above, or any other possible advantages that may be obtained.

Possible benefits of the sand making machine disclosed herein include, but are not limited to: the manufactured machine-made sand has more reasonable grading; (2) the powder content of the produced machine-made sand is lower; (3) the production cost of the machine-made sand can be saved; (4) has the functions of crushing and shaping materials; and (5) the sand making machine has long service life and stable operation. It should be noted that, the advantages that may be generated by different embodiments may be different, and in different embodiments, the advantages that may be generated may be any one or a combination of several of the above, or any other possible advantages that may be obtained.

The foregoing description of the preferred embodiments of the present application is not intended to be limiting, but is intended to cover any and all modifications, equivalents, and alternatives falling within the spirit and principles of the present application.

Claims (6)

1. The utility model provides a sand making machine, its characterized in that includes comb board adjusting device (155), flexible adjusting device (160), rotor (130), lower comb board (150) and counterattack frame (140), comb board adjusting device (155) include: the device comprises a grid plate supporting shaft (1553), a sliding block (1554), a lower jackscrew (1556), a lower jackscrew fixing block (1560) and an adjusting gasket (1555);

two ends of the grate plate supporting shaft (1553) are respectively connected with the sliding blocks (1554), the grate plate bracket (151) of the lower grate plate (150) is rotatably sleeved on the grate plate supporting shaft (1553), and the lower grate plate (150) is arc-shaped and is arranged below the rotor (130);

the lower jackscrew (1556) is in threaded connection with the lower jackscrew fixing block (1560), the upper end of the lower jackscrew (1556) abuts against the lower end of the sliding block (1554), and the sliding block (1554) is driven to move up and down by rotation of the lower jackscrew (1556);

the adjusting washer (1555) is placed between the slider (1554) and the lower jackscrew fixing block (1560) and is used for supporting the gravity of the slider (1554);

the reaction frame (140) is arc-shaped and arranged above the rotor (130), the reaction frame comprises a reaction frame fixing rotating shaft (141), an involute-shaped reaction panel (142) and reaction plates (143), the reaction frame fixing rotating shaft (141) is fixedly connected with the reaction frame (140), the reaction plates (143) are arranged in rows along the involute direction of the reaction panel (142) and form a toothed structure, and the flexible adjusting device (160) is used for adjusting the rotation angle of the reaction frame (140) around the reaction frame fixing rotating shaft (141);

The rotor (130) comprises a main shaft (134), a hammer disc (138), a hammer head (135) and a hammer ring (136); wherein,

at least two hammer disks (138) are fixedly arranged on the main shaft (134) and can coaxially rotate along with the main shaft (134);

at least two hammer heads (135) and at least two hammer rings (136) are arranged between every two hammer discs (138);

the hammer heads (135) and the hammer rings (136) are uniformly arranged at intervals along the circumferential direction;

at least two spacing sleeves (137) are fixedly arranged between every two hammer disks (138);

the spacer sleeve (137) comprises two fixed arms;

each fixed arm is provided with a fixed shaft;

one end of the fixed shaft is fixedly connected with the hammer head (135), and the other end of the fixed shaft is sleeved with a hammer ring (136);

at least two spacing sleeve fixing shafts (1385) are arranged on the hammer disc (138) at equal intervals along the circumferential direction, and the spacing sleeve (137) is fixedly sleeved on the spacing sleeve fixing shafts (1385);

the spacer fixed shaft (1385) penetrates through the plurality of hammer disks (138) and is fixedly connected with the hammer disks.

2. The sand making machine according to claim 1, characterized in that said grate plate adjusting means (155) further comprises an upper jackscrew (1557) and an upper jackscrew fixing block (1561);

The upper jackscrew (1557) is in threaded connection with the upper jackscrew fixing block (1561), and the lower end of the upper jackscrew (1557) is in contact with the upper end of the sliding block (1554).

3. The sand making machine according to claim 1, wherein the grate plate adjusting device (155) further comprises a sealing plate (1558), the sealing plate (1558) is adjacent to the sliding block (1554) and sleeved on the grate plate supporting shaft (1553).

4. A sand making machine as claimed in claim 3, characterised in that the sealing plate (1558) is provided with an annular groove in which an O-ring (1559) is provided.

5. The sand making machine of claim 1, wherein the grate plate adjusting device (155) further comprises a baffle plate (1551) for limiting the sliding block (1554), and the baffle plate (1551) is fixedly connected with the shell (110) of the sand making machine (100).

6. The sand making machine of claim 1, wherein the grate plate adjusting device (155) further comprises a cover plate (1552) for limiting the adjusting washer (1555), and the cover plate (1552) is fixedly connected with the shell (110) of the sand making machine (100).