35results about How to "Prevent lateral swing" patented technology

The invention relates to a biomass feed divider with changeable trough obliquity and vibration frequency and amplitude, which realizes continuous, stable and safe feed division by adopting two regulating measures of changing obliquity of a trough and changing vibration frequency and amplitude and by exciting force generated by a vibrating motor (9). The device is formed by arranging one or a plurality of independent distributors in parallel, wherein each distributor mainly comprises a trough body (4), a vibrating motor (9), an elevating (8), a spring supporting mechanism (11) and an auxiliary mechanism; the trough body (4) is supported by the spring supporting mechanism (11) at the front part and the elevating (8) at the rear part, the vibrating motor (9) is arranged in the middle of the bottom of the trough body (4), and the rear part of the trough body (4) is connected with bulkhead by canvas (3). The device integrates material storage and material distribution, is not only suitable for hard biomass but also is suitable for soft biomass, and has lateral expansibility, thereby being convenient to be used together with material equipment of various types.

The invention discloses a device and a method for closure construction of a girder side span of a cable-stayed bridge and relates to the field of construction of cable-stayed bridges. The device comprises a cable drawing hanging basket, a pier top support system and a cantilever outrigger, wherein the cable drawing hanging basket is arranged at the bottom of a cast girder, the pier top support system is arranged at the top of a side span closure section pier, and the cantilever outrigger is arranged at the top of the cast girder and above the pier top support system and the cable drawing hanging basket. The cable drawing hanging basket comprises two arc-shaped heads, and a transverse limit fixed pulley is welded on the outer side of each arc-shaped head and fixed on the outer side of the side span closure pier. The pier top support system comprises a first support, a second support, a plurality of first sand boxes and second sand boxes at the top of the side span closure section pier, and the outer portions of the first support and the second support are sleeved with support cover plates. The cast-in-situ section and the cast girder body are freely and synchronously telescopic, and construction cost is reduced.

The invention relates to the technical field of printing equipment and discloses a printing device. The printing device comprises a printing roller and a grooved wheel mechanism. The grooved wheel mechanism comprises a grooved wheel and a rotating wheel. The end face of the grooved wheel is connected with an ink guide roller, and the ink guide roller is fixed to the printing roller. The ink guideroller is provided with a plurality of ink guide grooves distributed uniformly, an ink cavity communicating with the ink guide grooves is formed in the printing roller, and the outer surface of the printing roller is provided with ink outlet holes communicating with the ink cavity. The grooved wheel is provided with a plurality of clamping grooves, the number of the clamping grooves is equal to the number of the ink guide grooves, an opening of the side portion of each clamping groove is in sliding connection with a sliding plate for sealing the opening, the sliding plates can slide in the radial direction of the grooved wheel, a cavity is formed between each sliding plate and the groove wall of the corresponding clamping groove in an enclosed mode, a piston is connected in each cavity ina sliding mode, a nozzle is connected to the end, close to the circle center of the grooved wheel, of each cavity, a pressure valve is arranged on each nozzle, and each nozzle faces the interior of the corresponding ink guide groove. The rotating wheel is provided with a clamping post. By means of the printing device, the problem that ink liquid in ink grooves is thrown out during ink feeding of existing printing rollers can be solved.

The invention provides an electrolyte sealing device for tubular electrode electrolytic machining. The electrolyte sealing device is characterized by comprising an electrolyte tank (1), a workpiece clamp (2), a pipeline (3), a filter (4), a high-pressure isolation pump (5), a three-way joint (6), a pressure gauge (7), a main body clamp I (8), an insulating pad (9), a tubular electrode (10), a water stop plug (11), a tubular electrode clamp (12), a main body clamp II (13), a guider clamp (14) and a guider (15). The water stop plug is used for sealing the device; the guider is used for preventing transverse swinging of a workpiece during machining; the insulating pad is used for insulating a motor; the tubular electrode clamp, the guider clamp, the workpiece clamp, the main body clamp I and the main body clamp II are respectively used for clamping and sealing fit of the tubular electrode, the guider and the workpiece; therefore, the clamping on the electrode, motor insulation and electrolyte sealing and circulation during tubular electrode electrolytic machining can be well realized.

The invention discloses an assembly type bridge which comprises a horizontal sliding plate and an elastic arc plate, the horizontal sliding plate and the elastic arc plate are rotationally connected, side edge supporting columns are installed at the bottom of the elastic arc plate, supporting bottom plates are fixedly connected to the bottoms of the side edge supporting columns, and elastic steel plates are evenly installed at the tops of the supporting bottom plates. And the tops of the elastic steel plates are fixedly connected with lifting supporting columns, and T-shaped sliding grooves are formed in the tops of the side supporting columns and the tops of the lifting supporting columns. The invention relates to the technical field of bridge construction. According to the assembly type bridge, the purpose of the flexibility degree of the assembly type bridge is achieved, the width of the bridge and the height of the guardrails can be flexibly adjusted according to the width of passing vehicles, the width of the bridge does not need to be increased when the vehicles with the larger width pass, the bridge construction cost is reduced, and the bridge safety is improved; when a large vehicle passes, friction and collision between the large vehicle and the side wall of a bridge can be avoided, and the technical requirements for vehicle drivers are lowered.

The invention discloses an ABS for a vehicle, and the vehicle with the ABS. The ABS for the vehicle comprises a first control valve, a second control valve, a third control valve, a braking valve, anair storing cylinder, a first front braking air chamber, a second front braking air chamber, a first rear braking air chamber and a second rear braking air chamber. The braking valve is connected witha braking control mechanism of the vehicle, and the air storing cylinder is connected with the braking valve. The first front braking air chamber and the second front braking air chamber selectivelycommunicate with the braking valve or the air storing cylinder through the first control valve correspondingly. The first rear braking air chamber selectively communicates with the braking valve or the air storing cylinder through the second control valve. The second rear braking air chamber selectively communicates with the braking valve or the air storing cylinder through the third control valve. The four braking air chambers are used for braking four wheels of the vehicle correspondingly. According to the ABS for the vehicle, the more stable effect is achieved during braking of the vehicle,meanwhile, the production cost is saved, and maintenance is convenient.

The invention discloses a three-line pendulum capable of measuring the rotational inertia of an object not rotating around the center of mass, and belongs to the technical field of the mechanical experiment instrument. The three-line pendulum comprises a support, an upper disc, a lower disc and three suspension lines. The bottom part of the support is fixedly provided with an internal cylinder. The lower end of the internal cylinder is open, and the upper end is provided with a cylinder cover. The side wall of the internal cylinder is provided with multiple ventilation holes. A gas compressor is connected on the opening of the lower end of the internal cylinder. An external cylinder sleeves outside the internal cylinder. The two ends of the external cylinder are open. The gas compressor pressurizes the gas in the internal cylinder. The gas in the internal cylinder can enter the gap between the internal cylinder and the external cylinder through the ventilation holes and then can be discharged out of the upper open end and the lower open end of the external cylinder. The three-line pendulum is simple in structure and can measure the rotational inertia of the object not rotating around the center of mass and can also measure the rotational inertia of the object rotating around the center of mass, and the three-line pendulum is high in measurement efficiency and great in measurement accuracy.

The invention relates to the technical field of bottle preform production, in particular to a damage-free preform conveyor. The damage-free preform conveyor comprises a support, a chain transmission assembly, a preform carrying assembly and a preform receiving assembly. The chain transmission assembly is mounted on the support, the preform carrying assembly is mounted on the chain transmission assembly, and the preform receiving assembly is mounted on the front side of the support. During preform receiving, bottle preforms are transferred to the preform carrying assembly located under a preform outlet mechanism from the preform outlet mechanism through the preform receiving assembly, and the preform carrying assembly loaded with the bottle preforms moves to the rear side of the support through the chain transmission assembly. The damage-free preform conveyor has the beneficial effects that after the bottle preforms are turned over through the preform outlet mechanism, openings of the bottle preforms are downward, inserting rods of the preform receiving assembly stretch out of preform bearing parts until the inserting rods stretch into the bottle preforms and abut against the innerbottoms of the bottle preforms, meanwhile, the bottle preforms are loosened by the preform outlet mechanism, the bottle preforms fall on the inserting rods, the inserting rods retract, and the preformbearing parts are stably sleeved with the bottle preforms. The whole process is stable in operation, the bottle preforms and the preform bearing parts are not in hard contact collisions, and it can be guaranteed that the inner and outer walls of the bottle preforms are not scratched to a large degree.

The invention discloses a tension leg net cage model test device. The device comprises a device framework and an underwater sand tank, wherein the device framework comprises two transverse girders stretching across guide rails at the two sides of a water tank and two longitudinal girders fixed between the two transverse girders, the underwater sand tank is connected with each longitudinal girder through an iron chain, a traction rod is arranged at the side edge of the transverse girder at the left side, traction pulleys are arranged above and below the traction rod respectively, a tension sensor, which is used for detecting deformation generated when the underwater sand tank is pulled, is arranged on the device framework, the tension sensor is connected with the underwater sand tank through a tension steel cable located on the two traction pulleys to form a tension conduction detection device, a tension steel cable of the underwater sand tank needs to be pre-tightened in advance, waterproof travel switches in one-to-one correspondence with gravity anchors of a tested tension leg net cage model are arranged in the underwater sand tank, and a controller electrically connected with the waterproof travel switches and the tension sensor is arranged above the device framework. Through the device, the maximum water flow impact force capable of being borne by an anchoring system of thetension leg net cage model can be tested.