Abstract: A jaw crusher with a double-crank-rocker mechanism includes: a frame (1); a fixed jaw plate (6); a movable jaw plate (5); a crank-rocker device and a driving wheel (2); wherein the crank-rocker device includes a front crank-rocker mechanism; and a rear crank-rocker mechanism. The front and rear crank-rocker mechanisms are provided on the same eccentric drive shaft (3) for forming a jaw crusher with a single eccentric driving shaft, or the front and rear crank-rocker mechanisms are respectively connected to a front eccentric driving shaft (15) and a rear eccentric driving shaft (14) rotating synchronously by the driving wheel (2) for forming a jaw crusher with double eccentric driving shafts. The front and rear crank-rocker mechanisms are utilized for changing mechanical structure characteristics of the bottom of the swinging jaw and greatly improving functionality of the jaw crusher.

Abstract: A single-shaft track-changeable vibration exciter comprises a vibration box (1), a bottom seat (2), a vibrating spring (19), and a vibrating shaft (3). The vibrating shaft (3) is set on the vibration box (1). The vibrating spring (19) is set between the vibration box (1) and the bottom seat (2). Multiple groups of track-restricting rod assemblies that are arranged aslant are set in two sides of the vibration box (1), and each group of the track-restricting rod assembly comprises two track-restricting rod assemblies that are arranged symmetrically in the both sides of the vibration box (1). Both ends of the each track-restricting rod assembly are hinged respectively on the vibration box (1) and the bottom seat (2).

Abstract: A multi-functional pair of crushing plates capable of self-trimming is disclosed. The pair of crushing plates includes a fixed jaw plate (5) and a movable jaw plate (4). The fixed jaw plate (5) and the movable jaw plate (4) both have base boards (11). The base board (11) has a plurality of tooth peaks (12) and tooth troughs (13). The tooth peaks (12) and the tooth troughs (13) on the fixed jaw plate (5) and the movable jaw plate (4) are arranged oppositely and intersectedly. The tooth troughs (13) have holes (14) perforated through the base boards (11). The holes (14) are arranged in columns along a direction of a length of the tooth peak (12) on the base board (11) opposite to the holes (14).

Abstract: A single-shaft track-changeable vibration exciter comprises a vibration box (1), a bottom seat (2), a vibrating spring (19), and a vibrating shaft (3). The vibrating shaft (3) is set on the vibration box (1). The vibrating spring (19) is set between the vibration box (1) and the bottom seat (2). Multiple groups of track-restricting rod assemblies that are arranged aslant are set in two sides of the vibration box (1), and each group of the track-restricting rod assembly comprises two track-restricting rod assemblies that are arranged symmetrically in the both sides of the vibration box (1). Both ends of the each track-restricting rod assembly are hinged respectively on the vibration box (1) and the bottom seat (2).

Abstract: A rotary crushing pair with uneven surfaces for cone crushers and roller crushers includes: a first crushing part and a second crushing part interacting with each other, wherein two crushing surfaces forming the crushing pair are uneven surfaces; the uneven surfaces are formed by single-helical ribs, loop ribs, mesh-like ribs, etc. By replacing a conventional solid smooth plate-like design with an uneven surface design of the rotary crushing pair, a main crushing mechanism, pressing, of conventional cone crushers and roller crushers is replaced by a combination of effective crushing mechanisms such as splitting, folding, twisting and cutting for fully eliminating slipping and greatly increasing crushing efficiency of the crusher.

Abstract: A jaw crusher with a double-crank-rocker mechanism includes: a frame (1); a fixed jaw plate (6); a movable jaw plate (5); a crank-rocker device and a driving wheel (2); wherein the crank-rocker device includes a front crank-rocker mechanism; and a rear crank-rocker mechanism. The front and rear crank-rocker mechanisms are provided on the same eccentric drive shaft (3) for forming a jaw crusher with a single eccentric driving shaft, or the front and rear crank-rocker mechanisms are respectively connected to a front eccentric driving shaft (15) and a rear eccentric driving shaft (14) rotating synchronously by the driving wheel (2) for forming a jaw crusher with double eccentric driving shafts. The front and rear crank-rocker mechanisms are utilized for changing mechanical structure characteristics of the bottom of the swinging jaw and greatly improving functionality of the jaw crusher.

Abstract: A multi-functional pair of crushing plates capable of self-trimming is disclosed. The pair of crushing plates includes a fixed jaw plate (5) and a movable jaw plate (4). The fixed jaw plate (5) and the movable jaw plate (4) both have base boards (11). The base board (11) has a plurality of tooth peaks (12) and tooth troughs (13). The tooth peaks (12) and the tooth troughs (13) on the fixed jaw plate (5) and the movable jaw plate (4) are arranged oppositely and intersectedly. The tooth troughs (13) have holes (14) perforated through the base boards (11). The holes (14) are arranged in columns along a direction of a length of the tooth peak (12) on the base board (11) opposite to the holes (14).